Number
126
126 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 312
Primality
Prime factorization: 2 × 3 2 × 7
Divisors & multiples
Aliquot sum (sum of proper divisors):
186
Representations
- In words
- one hundred twenty-six
- Ordinal
- 126th
- Roman numeral
- CXXVI
- Binary
- 1111110
- Octal
- 176
- Hexadecimal
- 7E
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 126, here are decompositions:
- 13 + 113 = 126
- 17 + 109 = 126
- 19 + 107 = 126
- 23 + 103 = 126
- 29 + 97 = 126
- 37 + 89 = 126
- 43 + 83 = 126
- 47 + 79 = 126
Showing the first eight; more decompositions exist.
ASCII character
As an ASCII codepoint, 126 is ~. Printable ASCII character ~.
Hex color
#00007E
RGB(0, 0, 126)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.126.