Number
805
805 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 1,152
Primality
Prime factorization: 5 × 7 × 23
Divisors & multiples
Aliquot sum (sum of proper divisors):
347
Representations
- In words
- eight hundred five
- Ordinal
- 805th
- Roman numeral
- DCCCV
- Binary
- 1100100101
- Octal
- 1445
- Hexadecimal
- 325
Also seen as
Unicode codepoint
̥
U+0325
Non-spacing mark (Mn)
UTF-8 encoding: CC A5 (2 bytes).
Hex color
#000325
RGB(0, 3, 37)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.37.