Number
523
523 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 524
Primality
523 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- five hundred twenty-three
- Ordinal
- 523rd
- Roman numeral
- DXXIII
- Binary
- 1000001011
- Octal
- 1013
- Hexadecimal
- 20B
Also seen as
Prime neighborhood
Unicode codepoint
ȋ
U+020B
Lowercase letter (Ll)
UTF-8 encoding: C8 8B (2 bytes).
Hex color
#00020B
RGB(0, 2, 11)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.11.