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Number

87,977

87,977 is a prime, odd.

Cousin Prime Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
38
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
87,978

Primality

87,977 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 87977
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 87,977)
1 × 87977
First multiples
87,977 · 175,954 · 263,931 · 351,908 · 439,885 · 527,862 · 615,839 · 703,816 · 791,793 · 879,770

Representations

In words
eighty-seven thousand nine hundred seventy-seven
Ordinal
87977th
Binary
10101011110101001
Octal
253651
Hexadecimal
157A9

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 87,973 (gap of 4)
  • Next prime: 87,991 (gap of 14)

Pair status: cousin with 87973.

Hex color
#0157A9
RGB(1, 87, 169)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.87.169.