number.wiki
Number

89

89 is a prime, odd, a calendar year.

Deficient Number Fibonacci Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
2
Digit sum
17
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
90

Primality

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

Divisors & multiples

All divisors (2)
1 · 89
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 89)
1 × 89
First multiples
89 · 178 · 267 · 356 · 445 · 534 · 623 · 712 · 801 · 890

Representations

In words
eighty-nine
Ordinal
89th
Roman numeral
LXXXIX
Binary
1011001
Octal
131
Hexadecimal
59

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 83 (gap of 6)
  • Next prime: 97 (gap of 8)

Pair status: sexy with 83.

ASCII character

As an ASCII codepoint, 89 is Y. Printable ASCII character Y.

Hex color
#000059
RGB(0, 0, 89)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.89.