Hierarchy of Numbers
0 (zero)
1 (one)
2 (two)
3 (three)
4 (four)
5 (five)
6 (six)
7 (seven)
8 (eight)
9 (nine)
10 (ten)
10^2 (hundred)
10^3 (thousand)
| name |
American-French |
English-German |
| million |
10^6 |
10^6 |
| billion |
10^9 |
10^12 |
| trillion |
10^12 |
10^18 |
| quadrillion |
10^15 |
10^24 |
| quintillion |
10^18 |
10^30 |
| sextillion |
10^21 |
10^36 |
| septillion |
10^24 |
10^42 |
| octillion |
10^27 |
10^48 |
| nonillion |
10^30 |
10^54 |
| decillion |
10^33 |
10^60 |
| undecillion |
10^36 |
10^66 |
| duodecillion |
10^39 |
10^72 |
| tredecillion |
10^42 |
10^78 |
| quatuordecillion |
10^45 |
10^84 |
| quindecillion |
10^48 |
10^90 |
| sexdecillion |
10^51 |
10^96 |
| septendecillion |
10^54 |
10^102 |
| octodecillion |
10^57 |
10^108 |
| novemdecillion |
10^60 |
10^114 |
| vigintillion |
10^63 |
10^120 |
| googol |
10^100 |
| googolplex |
10^googol = 10^(10^100) |
SI Prefixes
| Number | Prefix | Symbol |
| 10 1 | deka- | da |
| 10 2 | hecto- | h |
| 10 3 | kilo- | k |
| 10 6 | mega- | M |
| 10 9 | giga- | G |
| 10 12 | tera- | T |
| 10 15 | peta- | P |
| 10 18 | exa- | E |
| 10 21 | zeta- | Z |
| 10 24 | yotta- | Y |
|
| Number | Prefix | Symbol |
| 10 -1 | deci- | d |
| 10 -2 | centi- | c |
| 10 -3 | milli- | m |
| 10 -6 | micro- | u (greek mu) |
| 10 -9 | nano- | n |
| 10 -12 | pico- | p |
| 10 -15 | femto- | f |
| 10 -18 | atto- | a |
| 10 -21 | zepto- | z |
| 10 -24 | yocto- | y |
|
Roman Numerals
| I=1 | V=5 | X=10 | L=50 | C=100 | D=500 | M=1 000 |
| _
V=5 000 | _
X=10 000 | _
L=50 000 | _
C = 100 000 | _
D=500 000 | _
M=1 000 000 |
Examples:
1 = I
2 = II
3 = III
4 = IV
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
10 = X
| 11 = XI
12 = XII
13 = XIII
14 = XIV
15 = XV
16 = XVI
17 = XVII
18 = XVIII
19 = XIX
20 = XX
21 = XXI
| 25 = XXV
30 = XXX
40 = XL
49 = XLIX
50 = L
51 = LI
60 = LX
70 = LXX
80 = LXXX
90 = XC
99 = XCIX
|
Number Base Systems
| decimal |
binary |
ternary |
oct |
hex |
| 0 |
0 |
0 |
0 |
0 |
| 1 |
1 |
1 |
1 |
1
|
| 2 |
10 |
2 |
2 |
2
|
| 3 |
11 |
10 |
3 |
3
|
| 4 |
100 |
11 |
4 |
4
|
| 5 |
101 |
12 |
5 |
5
|
| 6 |
110 |
20 |
6 |
6
|
| 7 |
111 |
21 |
7 |
7
|
| 8 |
1000 |
22 |
10 |
8
|
| 9 |
1001 |
100 |
11 |
9
|
| 10 |
1010 |
101 |
12 |
A
|
| 11 |
1011 |
102 |
13 |
B
|
| 12 |
1100 |
110 |
14 |
C
|
| 13 |
1101 |
111 |
15 |
D
|
| 14 |
1110 |
112 |
16 |
E
|
| 15 |
1111 |
120 |
17 |
F
|
| 16 |
10000 |
121 |
20 |
10
|
| 17 |
10001 |
122 |
21 |
11
|
| 18 |
10010 |
200 |
22 |
12
|
| 19 |
10011 |
201 |
23 |
13
|
| 20 |
10100 |
202 |
24 |
14 |
JavaScript Base Conversion Calculator
(This converts non-integer values & negative bases too!)
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