Number
139
139 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 140
Primality
139 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- one hundred thirty-nine
- Ordinal
- 139th
- Roman numeral
- CXXXIX
- Binary
- 10001011
- Octal
- 213
- Hexadecimal
- 8B
Also seen as
Prime neighborhood
Unicode codepoint
U+008B
Control character (Cc)
UTF-8 encoding: C2 8B (2 bytes).
Hex color
#00008B
RGB(0, 0, 139)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.139.