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8,040

8,040 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 Harshad / Niven

Properties

Parity
Even
Digit count
4
Digit sum
12
Digital root
3
Palindrome
No
Divisor count
32
σ(n) — sum of divisors
24,480

Primality

Prime factorization: 2 3 × 3 × 5 × 67

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 20 · 24 · 30 · 40 · 60 · 67 · 120 · 134 · 201 · 268 · 335 · 402 · 536 · 670 · 804 · 1005 · 1340 · 1608 · 2010 · 2680 · 4020 · 8040
Aliquot sum (sum of proper divisors): 16,440
Factor pairs (a × b = 8,040)
1 × 8040
2 × 4020
3 × 2680
4 × 2010
5 × 1608
6 × 1340
8 × 1005
10 × 804
12 × 670
15 × 536
20 × 402
24 × 335
30 × 268
40 × 201
60 × 134
67 × 120
First multiples
8,040 · 16,080 · 24,120 · 32,160 · 40,200 · 48,240 · 56,280 · 64,320 · 72,360 · 80,400

Representations

In words
eight thousand forty
Ordinal
8040th
Binary
1111101101000
Octal
17550
Hexadecimal
1F68

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8040, here are decompositions:

  • 23 + 8017 = 8040
  • 29 + 8011 = 8040
  • 31 + 8009 = 8040
  • 47 + 7993 = 8040
  • 89 + 7951 = 8040
  • 103 + 7937 = 8040
  • 107 + 7933 = 8040
  • 113 + 7927 = 8040

Showing the first eight; more decompositions exist.

Unicode codepoint
U+1F68
Uppercase letter (Lu)

UTF-8 encoding: E1 BD A8 (3 bytes).

Hex color
#001F68
RGB(0, 31, 104)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.31.104.