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42,722

42,722 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
17
Digital root
8
Palindrome
No
Divisor count
8
σ(n) — sum of divisors
65,772

Primality

Prime factorization: 2 × 41 × 521

Divisors & multiples

All divisors (8)
1 · 2 · 41 · 82 · 521 · 1042 · 21361 · 42722
Aliquot sum (sum of proper divisors): 23,050
Factor pairs (a × b = 42,722)
1 × 42722
2 × 21361
41 × 1042
82 × 521
First multiples
42,722 · 85,444 · 128,166 · 170,888 · 213,610 · 256,332 · 299,054 · 341,776 · 384,498 · 427,220

Representations

In words
forty-two thousand seven hundred twenty-two
Ordinal
42722nd
Binary
1010011011100010
Octal
123342
Hexadecimal
A6E2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42722, here are decompositions:

  • 3 + 42719 = 42722
  • 13 + 42709 = 42722
  • 19 + 42703 = 42722
  • 73 + 42649 = 42722
  • 79 + 42643 = 42722
  • 151 + 42571 = 42722
  • 223 + 42499 = 42722
  • 271 + 42451 = 42722

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A6E2
Other letter (Lo)

UTF-8 encoding: EA 9B A2 (3 bytes).

Hex color
#00A6E2
RGB(0, 166, 226)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.226.