124 (number)

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123 124 125
Cardinal one hundred twenty-four
Ordinal 124th
(one hundred and twenty-fourth)
Factorization 22× 31
Divisors 1, 2, 4, 31, 62, 124
Roman numeral CXXIV
Binary 11111002
Ternary 111213
Quaternary 13304
Quinary 4445
Senary 3246
Octal 1748
Duodecimal A412
Hexadecimal 7C16
Vigesimal 6420
Base 36 3G36

124 (one hundred [and] twenty-four) is the natural number following 123 and preceding 125.

In mathematics[edit]

124 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, it is an untouchable number since there is no integer whose proper divisors add up to 124.

In base 5 it is a repdigit (4445).

In the military[edit]

In transportation[edit]

In other fields[edit]

124 is also:

See also[edit]