number.wiki
Number

73,721

73,721 is a prime, odd.

Deficient Number Prime Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
20
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
73,722

Primality

73,721 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 73721
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 73,721)
1 × 73721
First multiples
73,721 · 147,442 · 221,163 · 294,884 · 368,605 · 442,326 · 516,047 · 589,768 · 663,489 · 737,210

Representations

In words
seventy-three thousand seven hundred twenty-one
Ordinal
73721st
Binary
10001111111111001
Octal
217771
Hexadecimal
11FF9

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 73,709 (gap of 12)
  • Next prime: 73,727 (gap of 6)

Pair status: sexy with 73727.

Hex color
#011FF9
RGB(1, 31, 249)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.31.249.