123 (number)
From Freepedia
| Cardinal | 123 one hundred [and] twenty-three |
| Ordinal | 123rd one hundred [and] twenty-third |
| Factorization | <math> 3 \cdot 41 </math> |
| Divisors | 3, 41 |
| Roman numeral | CXXIII |
| Prefixes | hecatontakaiicosikaitria- (Greek) |
| Binary | 1111011 |
| Octal | 173 |
| Duodecimal | A3 |
| Hexadecimal | 7B |
123 is the natural number following 122 and preceding 124.
It is a Lucas number and a Smarandche consecutive number.
It is the first nontrivial 42-gonal number.
One hundred twenty-three is also:
