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42,800

42,800 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
5
Digit sum
14
Digital root
5
Palindrome
No
Divisor count
30
σ(n) — sum of divisors
103,788

Primality

Prime factorization: 2 4 × 5 2 × 107

Divisors & multiples

All divisors (30)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 25 · 40 · 50 · 80 · 100 · 107 · 200 · 214 · 400 · 428 · 535 · 856 · 1070 · 1712 · 2140 · 2675 · 4280 · 5350 · 8560 · 10700 · 21400 · 42800
Aliquot sum (sum of proper divisors): 60,988
Factor pairs (a × b = 42,800)
1 × 42800
2 × 21400
4 × 10700
5 × 8560
8 × 5350
10 × 4280
16 × 2675
20 × 2140
25 × 1712
40 × 1070
50 × 856
80 × 535
100 × 428
107 × 400
200 × 214
First multiples
42,800 · 85,600 · 128,400 · 171,200 · 214,000 · 256,800 · 299,600 · 342,400 · 385,200 · 428,000

Representations

In words
forty-two thousand eight hundred
Ordinal
42800th
Binary
1010011100110000
Octal
123460
Hexadecimal
A730

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42800, here are decompositions:

  • 3 + 42797 = 42800
  • 7 + 42793 = 42800
  • 13 + 42787 = 42800
  • 73 + 42727 = 42800
  • 97 + 42703 = 42800
  • 103 + 42697 = 42800
  • 151 + 42649 = 42800
  • 157 + 42643 = 42800

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A730
Lowercase letter (Ll)

UTF-8 encoding: EA 9C B0 (3 bytes).

Hex color
#00A730
RGB(0, 167, 48)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.48.