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15,442

15,442 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.).
Deficient Number Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
16
Digital root
7
Palindrome
No
Divisor count
8
σ(n) — sum of divisors
26,496

Primality

Prime factorization: 2 × 7 × 1103

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 1103 · 2206 · 7721 · 15442
Aliquot sum (sum of proper divisors): 11,054
Factor pairs (a × b = 15,442)
1 × 15442
2 × 7721
7 × 2206
14 × 1103
First multiples
15,442 · 30,884 · 46,326 · 61,768 · 77,210 · 92,652 · 108,094 · 123,536 · 138,978 · 154,420

Representations

In words
fifteen thousand four hundred forty-two
Ordinal
15442nd
Binary
11110001010010
Octal
36122
Hexadecimal
3C52

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 15442, here are decompositions:

  • 3 + 15439 = 15442
  • 29 + 15413 = 15442
  • 41 + 15401 = 15442
  • 59 + 15383 = 15442
  • 83 + 15359 = 15442
  • 113 + 15329 = 15442
  • 173 + 15269 = 15442
  • 179 + 15263 = 15442

Showing the first eight; more decompositions exist.

Unicode codepoint
U+3C52
Other letter (Lo)

UTF-8 encoding: E3 B1 92 (3 bytes).

Hex color
#003C52
RGB(0, 60, 82)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.60.82.