Number
253
253 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 288
Primality
Prime factorization: 11 × 23
Divisors & multiples
Aliquot sum (sum of proper divisors):
35
Representations
- In words
- two hundred fifty-three
- Ordinal
- 253rd
- Roman numeral
- CCLIII
- Binary
- 11111101
- Octal
- 375
- Hexadecimal
- FD
Also seen as
Unicode codepoint
ý
U+00FD
Lowercase letter (Ll)
UTF-8 encoding: C3 BD (2 bytes).
Hex color
#0000FD
RGB(0, 0, 253)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.253.