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40,442

40,442 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
14
Digital root
5
Palindrome
No
Reversed
24,404
Divisor count
8
σ(n) — sum of divisors
61,716

Primality

Prime factorization: 2 × 73 × 277

Divisors & multiples

All divisors (8)
1 · 2 · 73 · 146 · 277 · 554 · 20221 · 40442
Aliquot sum (sum of proper divisors): 21,274
Factor pairs (a × b = 40,442)
1 × 40442
2 × 20221
73 × 554
146 × 277
First multiples
40,442 · 80,884 · 121,326 · 161,768 · 202,210 · 242,652 · 283,094 · 323,536 · 363,978 · 404,420

Representations

In words
forty thousand four hundred forty-two
Ordinal
40442nd
Binary
1001110111111010
Octal
116772
Hexadecimal
0x9DFA
Base64
nfo=

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 40442, here are decompositions:

  • 13 + 40429 = 40442
  • 19 + 40423 = 40442
  • 211 + 40231 = 40442
  • 229 + 40213 = 40442
  • 313 + 40129 = 40442
  • 331 + 40111 = 40442
  • 349 + 40093 = 40442
  • 379 + 40063 = 40442

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-9Dfa
U+9DFA
Other letter (Lo)

UTF-8 encoding: E9 B7 BA (3 bytes).

Hex color
#009DFA
RGB(0, 157, 250)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.157.250.

Address
0.0.157.250
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.157.250

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US bank routing number

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

Routing number
000040442
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.