Properties of the Number 87142

Eighty-Seven Thousand One Hundred Forty-Two

Basics

Value: 87141 → 87142 → 87143

Parity: even

Prime: No

Previous Prime: 87133

Next Prime: 87149

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 17 × 233

Divisors: 1, 2, 11, 17, 22, 34, 187, 233, 374, 466

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 10101010001100110

Octal: 252146

Duodecimal: 4251A

Hexadecimal: 15466

Square: 7593728164

Square Root: 295.1982384771291

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

Heptagonal numbers which are products of four distinct primes. A351867

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, 0, 1), (0, 1, 1), (1, -1, -1)}. A149870

Numbers divisible by their individual digits, but not by the sum of their digits (counted with multiplicity). A87142

Number of length-(n+1) 0..4 arrays with new values introduced in sequential order, and with new repeated values introduced in sequential order, both starting with zero. A268323