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2,626

2,626 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
4
Digit sum
16
Digital root
7
Palindrome
No
Divisor count
8
σ(n) — sum of divisors
4,284

Primality

Prime factorization: 2 × 13 × 101

Divisors & multiples

All divisors (8)
1 · 2 · 13 · 26 · 101 · 202 · 1313 · 2626
Aliquot sum (sum of proper divisors): 1,658
Factor pairs (a × b = 2,626)
1 × 2626
2 × 1313
13 × 202
26 × 101
First multiples
2,626 · 5,252 · 7,878 · 10,504 · 13,130 · 15,756 · 18,382 · 21,008 · 23,634 · 26,260

Representations

In words
two thousand six hundred twenty-six
Ordinal
2626th
Roman numeral
MMDCXXVI
Binary
101001000010
Octal
5102
Hexadecimal
A42

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2626, here are decompositions:

  • 5 + 2621 = 2626
  • 17 + 2609 = 2626
  • 47 + 2579 = 2626
  • 83 + 2543 = 2626
  • 149 + 2477 = 2626
  • 167 + 2459 = 2626
  • 179 + 2447 = 2626
  • 227 + 2399 = 2626

Showing the first eight; more decompositions exist.

Unicode codepoint
U+0A42
Non-spacing mark (Mn)

UTF-8 encoding: E0 A9 82 (3 bytes).

Hex color
#000A42
RGB(0, 10, 66)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.10.66.

Possible US bank routing number

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

Routing number
000002626
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.