124 (number)
From Freepedia
One hundred twenty-four (124, CXXIV) is the natural number following 123 and preceding 125.
| Cardinal | 124 one hundred [and] twenty-four |
| Ordinal | 124th one hundred [and] twenty-fourth |
| Factorization | <math>124 = 2^2 \cdot 31</math> |
| Divisors | 2, 4, 31, 62 |
| Roman numeral | CXXIV |
| Binary | 1111100 |
| Octal | 174 |
| Duodecimal | A4 |
| Hexadecimal | 7C |
It is the sum of eight consecutive primes (5 + 7 + 11 + 13 + 17 + 19 + 23 + 29). It is a nontotient since there is no integer with 124 coprimes below it, and it is an untouchable number since there is no integer whose proper divisors add up to 124.
One hundred twenty-four is also:
