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23,980

23,980 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
22
Digital root
4
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
55,440

Primality

Prime factorization: 2 2 × 5 × 11 × 109

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 11 · 20 · 22 · 44 · 55 · 109 · 110 · 218 · 220 · 436 · 545 · 1090 · 1199 · 2180 · 2398 · 4796 · 5995 · 11990 · 23980
Aliquot sum (sum of proper divisors): 31,460
Factor pairs (a × b = 23,980)
1 × 23980
2 × 11990
4 × 5995
5 × 4796
10 × 2398
11 × 2180
20 × 1199
22 × 1090
44 × 545
55 × 436
109 × 220
110 × 218
First multiples
23,980 · 47,960 · 71,940 · 95,920 · 119,900 · 143,880 · 167,860 · 191,840 · 215,820 · 239,800

Representations

In words
twenty-three thousand nine hundred eighty
Ordinal
23980th
Binary
101110110101100
Octal
56654
Hexadecimal
5DAC

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 23980, here are decompositions:

  • 3 + 23977 = 23980
  • 23 + 23957 = 23980
  • 71 + 23909 = 23980
  • 101 + 23879 = 23980
  • 107 + 23873 = 23980
  • 149 + 23831 = 23980
  • 167 + 23813 = 23980
  • 179 + 23801 = 23980

Showing the first eight; more decompositions exist.

Unicode codepoint
U+5DAC
Other letter (Lo)

UTF-8 encoding: E5 B6 AC (3 bytes).

Hex color
#005DAC
RGB(0, 93, 172)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.93.172.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000023980
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.