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Number

15,493

15,493 is a prime, odd.

Cousin Prime Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
22
Digital root
4
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
15,494

Primality

15,493 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 15493
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 15,493)
1 × 15493
First multiples
15,493 · 30,986 · 46,479 · 61,972 · 77,465 · 92,958 · 108,451 · 123,944 · 139,437 · 154,930

Representations

In words
fifteen thousand four hundred ninety-three
Ordinal
15493rd
Binary
11110010000101
Octal
36205
Hexadecimal
3C85

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 15,473 (gap of 20)
  • Next prime: 15,497 (gap of 4)

Pair status: cousin with 15497.

Unicode codepoint
U+3C85
Other letter (Lo)

UTF-8 encoding: E3 B2 85 (3 bytes).

Hex color
#003C85
RGB(0, 60, 133)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.60.133.

Possible US bank routing number

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

Routing number
000015493
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.