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47,142

47,142 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 Happy Number Harshad / Niven

Properties

Parity
Even
Digit count
5
Digit sum
18
Digital root
9
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
107,016

Primality

Prime factorization: 2 × 3 5 × 97

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 9 · 18 · 27 · 54 · 81 · 97 · 162 · 194 · 243 · 291 · 486 · 582 · 873 · 1746 · 2619 · 5238 · 7857 · 15714 · 23571 · 47142
Aliquot sum (sum of proper divisors): 59,874
Factor pairs (a × b = 47,142)
1 × 47142
2 × 23571
3 × 15714
6 × 7857
9 × 5238
18 × 2619
27 × 1746
54 × 873
81 × 582
97 × 486
162 × 291
194 × 243
First multiples
47,142 · 94,284 · 141,426 · 188,568 · 235,710 · 282,852 · 329,994 · 377,136 · 424,278 · 471,420

Representations

In words
forty-seven thousand one hundred forty-two
Ordinal
47142nd
Binary
1011100000100110
Octal
134046
Hexadecimal
B826

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 47142, here are decompositions:

  • 5 + 47137 = 47142
  • 13 + 47129 = 47142
  • 19 + 47123 = 47142
  • 23 + 47119 = 47142
  • 31 + 47111 = 47142
  • 83 + 47059 = 47142
  • 101 + 47041 = 47142
  • 149 + 46993 = 47142

Showing the first eight; more decompositions exist.

Unicode codepoint
U+B826
Other letter (Lo)

UTF-8 encoding: EB A0 A6 (3 bytes).

Hex color
#00B826
RGB(0, 184, 38)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.184.38.