Here is the collection of commonly used
large numbers where I normally get confused:
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Compiled, Created and Designed by Jagdeep Yadav
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Large Numbers Comparision Part-I
|
SI prefixes |
|||||
|
10n |
Computer Prefix |
Symbol |
Short scale |
Long scale |
Decimal equivalent |
|
1024 |
yotta |
Y |
Septillion |
Quadrillion |
1 000 000 000 000 000 000 000 000 |
|
1021 |
zetta |
Z |
Sextillion |
Trilliard (thousand trillion) |
1 000 000 000 000 000 000 000 |
|
1018 |
exa |
E |
Quintillion |
Trillion |
1 000 000 000 000 000 000 |
|
1015 |
peta |
P |
Quadrillion |
Billiard (thousand billion) |
1 000 000 000 000 000 |
|
1012 |
tera |
T |
Trillion |
Billion |
1 000 000 000 000 |
|
109 |
giga |
G |
Billion |
Milliard (thousand million) |
1 000 000 000 |
|
106 |
mega |
M |
Million |
1 000 000 |
|
|
103 |
kilo |
k |
Thousand |
1 000 |
|
|
102 |
hecto |
h |
Hundred |
100 |
|
|
101 |
deca, deka |
da |
Ten |
10 |
|
|
100 |
none |
none |
One |
1 |
|
|
10−1 |
deci |
d |
Tenth |
0.1 |
|
|
10−2 |
centi |
c |
Hundredth |
0.01 |
|
|
10−3 |
milli |
m |
Thousandth |
0.001 |
|
|
10−6 |
micro |
µ |
Millionth |
0.000 001 |
|
|
10−9 |
nano |
n |
Billionth |
Milliardth |
0.000 000 001 |
|
10−12 |
pico |
p |
Trillionth |
Billionth |
0.000 000 000 001 |
|
10−15 |
femto |
f |
Quadrillionth |
Billiardth |
0.000 000 000 000 001 |
|
10−18 |
atto |
a |
Quintillionth |
Trillionth |
0.000 000 000 000 000 001 |
|
10−21 |
zepto |
z |
Sextillionth |
Trilliardth |
0.000 000 000 000 000 000 001 |
|
10−24 |
yocto |
y |
Septillionth |
Quadrillionth |
0.000 000 000 000 000 000 000 001 |
|
Name |
Symbol |
Value
|
Base
16 |
Base 10
|
|
kilo |
K |
210 = 1,024 |
= 162.5 |
> 103 |
|
mega |
M |
220 = 1,048,576 |
= 165 |
> 106 |
|
giga |
G |
230 = 1,073,741,824 |
= 167.5 |
> 109 |
|
tera |
T |
240 = 1,099,511,627,776 |
= 1610 |
> 1012 |
|
peta |
P |
250 = 1,125,899,906,842,624 |
= 1612.5 |
> 1015 |
|
exa |
E |
260 = 1,152,921,504,606,846,976 |
= 1615 |
> 1018 |
|
zetta |
Z |
270 = 1,180,591,620,717,411,303,424 |
= 1617.5 |
> 1021 |
|
yotta |
Y |
280 = 1,208,925,819,614,629,174,706,176 |
= 1620 |
> 1024 |
Frequently Used Powers of 2 are:
20 1
21 2
22
4
23 8
24
16
25
32
26
64
27
128
28
256
216
65536
232
4294967296
264
18446744073709551616
2128
3.4028236692093846346337460743177e+38
2256 1.1579208923731619542357098500869e+77
2512
1.3407807929942597099574024998206e+154
21024 1.797693134862315907729305190789e+308
___________________________________________________________________________________________________________________________
Large Numbers Comparision Part-II
|
Value |
|
Traditional
British |
Traditional
European |
Computers |
Indian |
|
100 |
|
|
|
|
|
|
101 |
|
|
|
|
|
|
103 |
|
|
|
|
|
|
106 |
Million |
|
|
|
|
|
109 |
Billion |
Thousand million |
Milliard |
|
|
|
1012 |
Trillion |
Billion |
Billion |
|
|
|
1015 |
Quadrillion |
Thousand billion |
Billiard |
|
|
|
1018 |
Quintillion |
Trillion |
Trillion |
|
|
|
1021 |
Sextillion |
Thousand trillion |
Trilliard |
|
|
|
1024 |
Septillion |
Quadrillion |
Quadrillion |
|
|
|
1027 |
Octillion |
Thousand quadrillion |
Quadrilliard |
|
|
|
1030 |
Nonillion |
Quintillion |
Quintillion |
|
|
|
1033 |
Decillion |
Thousand quintillion |
Quintilliard |
|
|
|
1036 |
Undecillion |
Sextillion |
Sextillion |
|
|
|
1039 |
Duodecillion |
Thousand sextillion |
Sextilliard |
|
|
|
1042 |
Tredecillion |
Septillion |
Septillion |
|
|
|
1045 |
Quattuordecillion |
Thousand septillion |
Septilliard |
|
|
|
1048 |
Quindecillion |
Octillion |
Octillion |
|
|
|
1051 |
Sexdecillion |
Thousand octillion |
Octilliard |
|
|
|
1054 |
Septendecillion |
Nonillion |
Nonillion |
|
|
|
1057 |
Octodecillion |
Thousand nonillion |
Nonilliard |
|
|
|
1060 |
Novemdecillion |
Decillion |
Decillion |
|
|
|
1063 |
Vigintillion |
Thousand decillion |
Decilliard |
|
|
|
1066 |
Unvigintillion |
Undecillion |
Undecillion |
|
|
|
1069 |
Duovigintillion |
Thousand undecillion |
Undecilliard |
|
|
|
1072 |
Trevigintillion |
Duodecillion |
Duodecillion |
|
|
|
1075 |
Quattuorvigintillion |
Thousand duodecillion |
Duodecilliard |
|
|
|
1078 |
Quinvigintillion |
Tredecillion |
Tredecillion |
|
|
|
1081 |
Sexvigintillion |
Thousand tredecillion |
Tredecilliard |
|
|
|
1084 |
Septenvigintillion |
Quattuordecillion |
Quattuordecillion |
|
|
|
1087 |
Octovigintillion |
Thousand quattuordecillion |
Quattuordecilliard |
|
|
|
1090 |
Novemvigintillion |
Quindecillion |
Quindecillion |
|
|
|
1093 |
Trigintillion |
Thousand quindecillion |
Quindecilliard |
|
|
|
1096 |
Untrigintillion |
Sexdecillion |
Sexdecillion |
|
|
|
1099 |
Duotrigintillion |
Thousand sexdecillion |
Sexdecilliard |
|
|
|
10100 |
Googol |
... |
... |
|
|
|
10102 |
Tretrigintillion |
Septendecillion |
Septendecillion |
|
|
|
10105 |
Quattuortrigintillion |
Thousand septendecillion |
Septendecilliard |
|
|
|
10108 |
Quintrigintillion |
Octodecillion |
Octodecillion |
|
|
|
10111 |
Sextrigintillion |
Thousand octodecillion |
Octodecilliard |
|
|
|
10114 |
Septentrigintillion |
Novemdecillion |
Novemdecillion |
|
|
|
10117 |
Octotrigintillion |
Thousand novemdecillion |
Novemdecilliard |
|
|
|
10120 |
Novemtrigintillion |
Vigintillion |
Vigintillion |
|
|
|
10123 |
Quadragintillion |
Thousand vigintillion |
Vigintilliard |
|
|
|
10126 |
Unquadragintillion |
Unvigintillion |
Unvigintillion |
|
|
|
10129 |
Duoquadragintillion |
Thousand unvigintillion |
Unvigintilliard |
|
|
|
10132 |
Trequadragintillion |
Duovigintillion |
Duovigintillion |
|
|
|
10135 |
Quattuorquadragintillion |
Thousand duovigintillion |
Duovigintilliard |
|
|
|
10138 |
Quinquadragintillion |
Trevigintillion |
Trevigintillion |
|
|
|
10141 |
Sexquadragintillion |
Thousand trevigintillion |
Trevigintilliard |
|
|
|
10144 |
Septenquadragintillion |
Quattuorvigintillion |
Quattuorvigintillion |
|
|
|
10147 |
Octoquadragintillion |
Thousand quattuorvigintillion |
Quattuorvigintilliard |
|
|
|
10150 |
Novemquadragintillion |
Quinvigintillion |
Quinvigintillion |
|
|
|
10153 |
Quinquagintillion |
Thousand quinvigintillion |
Quinvigintilliard |
|
|
|
10156 |
Unquinquagintillion |
Sexvigintillion |
Sexvigintillion |
|
|
|
10159 |
Duoquinquagintillion |
Thousand sexvigintillion |
Sexvigintilliard |
|
|
|
10162 |
Trequinquagintillion |
Septenvigintillion |
Septenvigintillion |
|
|
|
10165 |
Quattuorquinquagintillion |
Thousand septenvigintillion |
Septenvigintilliard |
|
|
|
10168 |
Quinquinquagintillion |
Octovigintillion |
Octovigintillion |
|
|
|
10171 |
Sexquinquagintillion |
Thousand octovigintillion |
Octovigintilliard |
|
|
|
10174 |
Septenquinquagintillion |
Novemvigintillion |
Novemvigintillion |
|
|
|
10177 |
Octoquinquagintillion |
Thousand novemvigintillion |
Novemvigintilliard |
|
|
|
10180 |
Novemquinquagintillion |
Trigintillion |
Trigintillion |
|
|
|
10183 |
Sexagintillion |
Thousand trigintillion |
Trigintilliard |
|
|
|
10186 |
Unsexagintillion |
... |
... |
|
|
|
10189 |
Duosexagintillion |
... |
... |
|
|
|
10192 |
Tresexagintillion |
... |
... |
|
|
|
10195 |
Quattuorsexagintillion |
... |
... |
|
|
|
10198 |
Quinsexagintillion |
... |
... |
|
|
|
10201 |
Sexsexagintillion |
... |
... |
|
|
|
10204 |
Septsexagintillion |
... |
... |
|
|
|
10207 |
Octosexagintillion |
... |
... |
|
|
|
10210 |
Novemsexagintillion |
... |
... |
|
|
|
10213 |
Septuagintillion |
Thousand quintrigintillion |
Quintrigintilliard |
|
|
|
10216 |
Unseptuagintillion |
... |
... |
|
|
|
10219 |
Duoseptuagintillion |
... |
... |
|
|
|
10222 |
Treseptuagintillion |
... |
... |
|
|
|
10225 |
Quattuorseptuagintillion |
... |
... |
|
|
|
10228 |
Quinseptuagintillion |
... |
... |
|
|
|
10231 |
Sexseptuagintillion |
... |
... |
|
|
|
10234 |
Septseptuagintillion |
... |
... |
|
|
|
10237 |
Octoseptuagintillion |
... |
... |
|
|
|
10240 |
Novemseptuagintillion |
Quadragintillion |
Quadragintillion |
|
|
|
10243 |
Octogintillion |
Thousand quadragintillion |
Quadragintilliard |
|
|
|
10246 |
Unoctogintillion |
... |
... |
|
|
|
10249 |
Duooctogintillion |
... |
... |
|
|
|
10252 |
Treoctogintillion |
... |
... |
|
|
|
10255 |
Quattuoroctogintillion |
... |
... |
|
|
|
10258 |
Quinoctogintillion |
... |
... |
|
|
|
10261 |
Sexoctogintillion |
... |
... |
|
|
|
10264 |
Septoctogintillion |
... |
... |
|
|
|
10267 |
Octooctogintillion |
... |
... |
|
|
|
10270 |
Novemoctogintillion |
... |
... |
|
|
|
10273 |
Nonagintillion |
Quinquadragintillion |
Quinquadragintilliard |
|
|
|
10276 |
Unnonagintillion |
... |
... |
|
|
|
10279 |
Duononagintillion |
... |
... |
|
|
|
10282 |
Trenonagintillion |
... |
... |
|
|
|
10285 |
Duattuornonagintillion |
... |
... |
|
|
|
10288 |
Quinnonagintillion |
... |
... |
|
|
|
10291 |
Sexnonagintillion |
... |
... |
|
|
|
10294 |
Septnonagintillion |
... |
... |
|
|
|
10297 |
Octononagintillion |
... |
... |
|
|
|
10300 |
Novemnonagintillion |
Quinquagintillion |
Quinquagintillion |
|
|
|
10303 |
Centillion |
Thousand quinquagintillion |
Quinquagintilliard |
|
|
|
10306 |
Cenuntillion |
... |
... |
|
|
|
10309 |
Duocentillion |
... |
... |
|
|
|
10312 |
Centretillion |
... |
... |
|
|
|
10360 |
|
Sexagintillion |
Sexagintillion |
|
|
|
10363 |
|
Thousand sexagintillion |
Sexagintilliard |
|
|
|
10420 |
|
Septuagintillion |
Septuagintillion |
|
|
|
10423 |
|
Thousand septuagintillion |
Septuagintilliard |
|
|
|
10480 |
|
Octogintillion |
Octogintillion |
|
|
|
10483 |
|
Thousand octogintillion |
Octogintilliard |
|
|
|
10540 |
... |
Nonagintillion |
Nonagintillion |
|
|
|
10543 |
... |
Thousand nonagintillion |
Nonagintilliard |
|
|
|
10600 |
Novenonagintacentillion |
Centillion |
Centillion |
|
|
|
10603 |
Ducentillion |
Thousand centillion |
Centilliard |
|
|
There exist several unit prefixes used like the SI prefixes, but that are not part of the SI system.
Some of these were never part of any actual system of measurement. A few were proposals that were rejected. None is in common use, and many of the powers of ten they represent are already taken by SI prefixes.
One such prefix is bronto, used in the fake term brontobyte. References on the World Wide Web suggest meanings of the bronto prefix to be variously any of 1015, 1021, 1024, or 1027. SI has already produced standard prefixes for 1015 (peta), 1021 (zetta) and 1024 (yotta).
There are many other unofficial prefixes. Some of them appear to come from a numerical Greek root indicating the power of 1000 the prefix means. These prefixes are as follows:
|
Prefix |
Purported meaning |
|
una |
1033 |
|
vendeka (V) |
1033 |
|
weka (W) |
1030 |
|
dea |
1030 |
|
nea |
1027 |
|
xenna (X) |
1027 |
|
otta |
1024 |
|
hepa |
1021 |
|
ento |
10−21 |
|
fito |
10−24 |
|
syto |
10−27 |
|
xenno (x) |
10−27 |
|
tredo |
10−30 |
|
weko (w) |
10−30 |
|
revo |
10−33 |
|
vendeko (v) |
10−33 |
There have also been proposals to use the units of one of these systems with prefixes of a different base than ten, e.g. binary, dozenal or hexadecimal.