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23,140

23,140 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
10
Digital root
1
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
52,920

Primality

Prime factorization: 2 2 × 5 × 13 × 89

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 13 · 20 · 26 · 52 · 65 · 89 · 130 · 178 · 260 · 356 · 445 · 890 · 1157 · 1780 · 2314 · 4628 · 5785 · 11570 · 23140
Aliquot sum (sum of proper divisors): 29,780
Factor pairs (a × b = 23,140)
1 × 23140
2 × 11570
4 × 5785
5 × 4628
10 × 2314
13 × 1780
20 × 1157
26 × 890
52 × 445
65 × 356
89 × 260
130 × 178
First multiples
23,140 · 46,280 · 69,420 · 92,560 · 115,700 · 138,840 · 161,980 · 185,120 · 208,260 · 231,400

Representations

In words
twenty-three thousand one hundred forty
Ordinal
23140th
Binary
101101001100100
Octal
55144
Hexadecimal
5A64

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 23140, here are decompositions:

  • 23 + 23117 = 23140
  • 41 + 23099 = 23140
  • 53 + 23087 = 23140
  • 59 + 23081 = 23140
  • 83 + 23057 = 23140
  • 101 + 23039 = 23140
  • 113 + 23027 = 23140
  • 137 + 23003 = 23140

Showing the first eight; more decompositions exist.

Unicode codepoint
U+5A64
Other letter (Lo)

UTF-8 encoding: E5 A9 A4 (3 bytes).

Hex color
#005A64
RGB(0, 90, 100)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.90.100.