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Number

15,671

15,671 is a prime, odd.

Cousin Prime Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
20
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
15,672

Primality

15,671 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 15671
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 15,671)
1 × 15671
First multiples
15,671 · 31,342 · 47,013 · 62,684 · 78,355 · 94,026 · 109,697 · 125,368 · 141,039 · 156,710

Representations

In words
fifteen thousand six hundred seventy-one
Ordinal
15671st
Binary
11110100110111
Octal
36467
Hexadecimal
3D37

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 15,667 (gap of 4)
  • Next prime: 15,679 (gap of 8)

Pair status: cousin with 15667.

Unicode codepoint
U+3D37
Other letter (Lo)

UTF-8 encoding: E3 B4 B7 (3 bytes).

Hex color
#003D37
RGB(0, 61, 55)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.61.55.

Possible US bank routing number

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

Routing number
000015671
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.