Number
268
268 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 16
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 6
- σ(n) — sum of divisors
- 476
Primality
Prime factorization: 2 2 × 67
Divisors & multiples
Aliquot sum (sum of proper divisors):
208
Representations
- In words
- two hundred sixty-eight
- Ordinal
- 268th
- Roman numeral
- CCLXVIII
- Binary
- 100001100
- Octal
- 414
- Hexadecimal
- 10C
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 268, here are decompositions:
- 5 + 263 = 268
- 11 + 257 = 268
- 17 + 251 = 268
- 29 + 239 = 268
- 41 + 227 = 268
- 71 + 197 = 268
- 89 + 179 = 268
- 101 + 167 = 268
Showing the first eight; more decompositions exist.
Unicode codepoint
Č
U+010C
Uppercase letter (Lu)
UTF-8 encoding: C4 8C (2 bytes).
Hex color
#00010C
RGB(0, 1, 12)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.12.