Number
70
70 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 2
- Digit sum
- 7
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 144
Primality
Prime factorization: 2 × 5 × 7
Divisors & multiples
Aliquot sum (sum of proper divisors):
74
Representations
- In words
- seventy
- Ordinal
- 70th
- Roman numeral
- LXX
- Binary
- 1000110
- Octal
- 106
- Hexadecimal
- 46
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 70, here are decompositions:
- 3 + 67 = 70
- 11 + 59 = 70
- 17 + 53 = 70
- 23 + 47 = 70
- 29 + 41 = 70
ASCII character
As an ASCII codepoint, 70 is F. Printable ASCII character F.
Hex color
#000046
RGB(0, 0, 70)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.70.