Number
808
808 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 16
- Digital root
- 7
- Palindrome
- Yes
- Divisor count
- 8
- σ(n) — sum of divisors
- 1,530
Primality
Prime factorization: 2 3 × 101
Divisors & multiples
Aliquot sum (sum of proper divisors):
722
Representations
- In words
- eight hundred eight
- Ordinal
- 808th
- Roman numeral
- DCCCVIII
- Binary
- 1100101000
- Octal
- 1450
- Hexadecimal
- 328
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 808, here are decompositions:
- 11 + 797 = 808
- 47 + 761 = 808
- 89 + 719 = 808
- 107 + 701 = 808
- 131 + 677 = 808
- 149 + 659 = 808
- 167 + 641 = 808
- 191 + 617 = 808
Showing the first eight; more decompositions exist.
Unicode codepoint
̨
U+0328
Non-spacing mark (Mn)
UTF-8 encoding: CC A8 (2 bytes).
Hex color
#000328
RGB(0, 3, 40)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.40.