Number
522
522 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 1,170
Primality
Prime factorization: 2 × 3 2 × 29
Divisors & multiples
Aliquot sum (sum of proper divisors):
648
Representations
- In words
- five hundred twenty-two
- Ordinal
- 522nd
- Roman numeral
- DXXII
- Binary
- 1000001010
- Octal
- 1012
- Hexadecimal
- 20A
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 522, here are decompositions:
- 13 + 509 = 522
- 19 + 503 = 522
- 23 + 499 = 522
- 31 + 491 = 522
- 43 + 479 = 522
- 59 + 463 = 522
- 61 + 461 = 522
- 73 + 449 = 522
Showing the first eight; more decompositions exist.
Unicode codepoint
Ȋ
U+020A
Uppercase letter (Lu)
UTF-8 encoding: C8 8A (2 bytes).
Hex color
#00020A
RGB(0, 2, 10)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.10.