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13,842

13,842 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 Happy Number Harshad / Niven

Properties

Parity
Even
Digit count
5
Digit sum
18
Digital root
9
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
30,030

Primality

Prime factorization: 2 × 3 2 × 769

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 6 · 9 · 18 · 769 · 1538 · 2307 · 4614 · 6921 · 13842
Aliquot sum (sum of proper divisors): 16,188
Factor pairs (a × b = 13,842)
1 × 13842
2 × 6921
3 × 4614
6 × 2307
9 × 1538
18 × 769
First multiples
13,842 · 27,684 · 41,526 · 55,368 · 69,210 · 83,052 · 96,894 · 110,736 · 124,578 · 138,420

Representations

In words
thirteen thousand eight hundred forty-two
Ordinal
13842nd
Binary
11011000010010
Octal
33022
Hexadecimal
3612

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13842, here are decompositions:

  • 11 + 13831 = 13842
  • 13 + 13829 = 13842
  • 43 + 13799 = 13842
  • 53 + 13789 = 13842
  • 61 + 13781 = 13842
  • 79 + 13763 = 13842
  • 83 + 13759 = 13842
  • 113 + 13729 = 13842

Showing the first eight; more decompositions exist.

Unicode codepoint
U+3612
Other letter (Lo)

UTF-8 encoding: E3 98 92 (3 bytes).

Hex color
#003612
RGB(0, 54, 18)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.18.