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21,324

21,324 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Abundant Number Harshad / Niven

Properties

Parity
Even
Digit count
5
Digit sum
12
Digital root
3
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
49,784

Primality

Prime factorization: 2 2 × 3 × 1777

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 1777 · 3554 · 5331 · 7108 · 10662 · 21324
Aliquot sum (sum of proper divisors): 28,460
Factor pairs (a × b = 21,324)
1 × 21324
2 × 10662
3 × 7108
4 × 5331
6 × 3554
12 × 1777
First multiples
21,324 · 42,648 · 63,972 · 85,296 · 106,620 · 127,944 · 149,268 · 170,592 · 191,916 · 213,240

Representations

In words
twenty-one thousand three hundred twenty-four
Ordinal
21324th
Binary
101001101001100
Octal
51514
Hexadecimal
534C

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 21324, here are decompositions:

  • 5 + 21319 = 21324
  • 7 + 21317 = 21324
  • 11 + 21313 = 21324
  • 41 + 21283 = 21324
  • 47 + 21277 = 21324
  • 97 + 21227 = 21324
  • 103 + 21221 = 21324
  • 113 + 21211 = 21324

Showing the first eight; more decompositions exist.

Unicode codepoint
U+534C
Other letter (Lo)

UTF-8 encoding: E5 8D 8C (3 bytes).

Hex color
#00534C
RGB(0, 83, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.83.76.