Number
85
85 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 2
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 108
Primality
Prime factorization: 5 × 17
Divisors & multiples
Aliquot sum (sum of proper divisors):
23
Representations
- In words
- eighty-five
- Ordinal
- 85th
- Roman numeral
- LXXXV
- Binary
- 1010101
- Octal
- 125
- Hexadecimal
- 55
Also seen as
ASCII character
As an ASCII codepoint, 85 is U. Printable ASCII character U.
Hex color
#000055
RGB(0, 0, 85)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.85.