Properties of the Number 87999

Eighty-Seven Thousand Nine Hundred Ninety-Nine

Basics

Value: 87998 → 87999 → 88000

Parity: odd

Prime: No

Previous Prime: 87991

Next Prime: 88001

Digit Sum: 42

Digital Root: 6

Palindrome: No

Factorization: 3 × 29333

Divisors: 1, 3, 29333, 87999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011110111111

Octal: 253677

Duodecimal: 42B13

Hexadecimal: 157bf

Square: 7743824001

Square Root: 296.646253979382

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Positive integers n such that prime(n+i) is a primitive root modulo prime(n+j) for any distinct i and j among 0, 1, 2, 3. A243839

Numbers that require exactly 8 iterations to determine that they are happy or not (A007770 and A031177). A193996

Inverse of the Fibonacci sequence beginning 1,1 with respect to binomial convolution. A374917

a(n) is the LCM of palindromic divisors of n. A87999