number.wiki
Number

109

109 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Happy Number Prime Sexy Prime Squarefree Twin Prime Year

Properties

Parity
Odd
Digit count
3
Digit sum
10
Digital root
1
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
110

Primality

109 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 109
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 109)
1 × 109
First multiples
109 · 218 · 327 · 436 · 545 · 654 · 763 · 872 · 981 · 1,090

Representations

In words
one hundred nine
Ordinal
109th
Roman numeral
CIX
Binary
1101101
Octal
155
Hexadecimal
6D

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 107 (gap of 2)
  • Next prime: 113 (gap of 4)

Pair status: twin with 107, cousin with 113.

ASCII character

As an ASCII codepoint, 109 is m. Printable ASCII character m.

Hex color
#00006D
RGB(0, 0, 109)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.109.