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9,940

9,940 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

Properties

Parity
Even
Digit count
4
Digit sum
22
Digital root
4
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
24,192

Primality

Prime factorization: 2 2 × 5 × 7 × 71

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 28 · 35 · 70 · 71 · 140 · 142 · 284 · 355 · 497 · 710 · 994 · 1420 · 1988 · 2485 · 4970 · 9940
Aliquot sum (sum of proper divisors): 14,252
Factor pairs (a × b = 9,940)
1 × 9940
2 × 4970
4 × 2485
5 × 1988
7 × 1420
10 × 994
14 × 710
20 × 497
28 × 355
35 × 284
70 × 142
71 × 140
First multiples
9,940 · 19,880 · 29,820 · 39,760 · 49,700 · 59,640 · 69,580 · 79,520 · 89,460 · 99,400

Representations

In words
nine thousand nine hundred forty
Ordinal
9940th
Binary
10011011010100
Octal
23324
Hexadecimal
26D4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 9940, here are decompositions:

  • 11 + 9929 = 9940
  • 17 + 9923 = 9940
  • 53 + 9887 = 9940
  • 83 + 9857 = 9940
  • 89 + 9851 = 9940
  • 101 + 9839 = 9940
  • 107 + 9833 = 9940
  • 137 + 9803 = 9940

Showing the first eight; more decompositions exist.

Unicode codepoint
U+26D4
Other symbol (So)

UTF-8 encoding: E2 9B 94 (3 bytes).

Hex color
#0026D4
RGB(0, 38, 212)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.38.212.