number.wiki
Number

124

124 is a composite number, even, a calendar year.

Deficient Number Year

Properties

Parity
Even
Digit count
3
Digit sum
7
Digital root
7
Palindrome
No
Divisor count
6
σ(n) — sum of divisors
224

Primality

Prime factorization: 2 2 × 31

Divisors & multiples

All divisors (6)
1 · 2 · 4 · 31 · 62 · 124
Aliquot sum (sum of proper divisors): 100
Factor pairs (a × b = 124)
1 × 124
2 × 62
4 × 31
First multiples
124 · 248 · 372 · 496 · 620 · 744 · 868 · 992 · 1,116 · 1,240

Representations

In words
one hundred twenty-four
Ordinal
124th
Roman numeral
CXXIV
Binary
1111100
Octal
174
Hexadecimal
7C

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 124, here are decompositions:

  • 11 + 113 = 124
  • 17 + 107 = 124
  • 23 + 101 = 124
  • 41 + 83 = 124
  • 53 + 71 = 124
ASCII character

As an ASCII codepoint, 124 is |. Printable ASCII character |.

Hex color
#00007C
RGB(0, 0, 124)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.124.