number.wiki
Number

18,013

18,013 is a prime, odd.

Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
13
Digital root
4
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
18,014

Primality

18,013 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 18013
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 18,013)
1 × 18013
First multiples
18,013 · 36,026 · 54,039 · 72,052 · 90,065 · 108,078 · 126,091 · 144,104 · 162,117 · 180,130

Representations

In words
eighteen thousand thirteen
Ordinal
18013th
Binary
100011001011101
Octal
43135
Hexadecimal
465D

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 17,989 (gap of 24)
  • Next prime: 18,041 (gap of 28)
Unicode codepoint
䙝
U+465D
Other letter (Lo)

UTF-8 encoding: E4 99 9D (3 bytes).

Lookup U+465D on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#00465D
RGB(0, 70, 93)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.93.