Number
67
67 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 2
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 68
Primality
67 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- sixty-seven
- Ordinal
- 67th
- Roman numeral
- LXVII
- Binary
- 1000011
- Octal
- 103
- Hexadecimal
- 43
Also seen as
Prime neighborhood
ASCII character
As an ASCII codepoint, 67 is C. Printable ASCII character C.
Network port
TCP/UDP port 67 is the well-known port for DHCP server — Dynamic Host Configuration Protocol — server.
Hex color
#000043
RGB(0, 0, 67)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.67.