Number
58
58 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 2
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 90
Primality
Prime factorization: 2 × 29
Divisors & multiples
Aliquot sum (sum of proper divisors):
32
Representations
- In words
- fifty-eight
- Ordinal
- 58th
- Roman numeral
- LVIII
- Binary
- 111010
- Octal
- 72
- Hexadecimal
- 3A
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 58, here are decompositions:
- 5 + 53 = 58
- 11 + 47 = 58
- 17 + 41 = 58
- 29 + 29 = 58
ASCII character
As an ASCII codepoint, 58 is :. Printable ASCII character :.
Hex color
#00003A
RGB(0, 0, 58)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.58.