number.wiki
Number

57,221

57,221 is a prime, odd.

Deficient Number Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
17
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
57,222

Primality

57,221 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 57221
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 57,221)
1 × 57221
First multiples
57,221 · 114,442 · 171,663 · 228,884 · 286,105 · 343,326 · 400,547 · 457,768 · 514,989 · 572,210

Representations

In words
fifty-seven thousand two hundred twenty-one
Ordinal
57221st
Binary
1101111110000101
Octal
157605
Hexadecimal
DF85

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 57,203 (gap of 18)
  • Next prime: 57,223 (gap of 2)

Pair status: twin with 57223.

Hex color
#00DF85
RGB(0, 223, 133)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.223.133.