Properties of the Number -87151

Eighty-Seven Thousand One Hundred Fifty-One

Basics

Value: -87152 → -87151 → -87150

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 87151

Divisors: 1, 87151

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -10101010001101111

Octal: -252157

Duodecimal: -42527

Hexadecimal: -1546f

Square: 7595296801

Square Root: 295.21348207695394

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

Expansion of e.g.f. exp(-x·exp(2·x)). A356819

a(n) = a(n-1) + a(n-2) + a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1. A298338

The least number s > 1 having exactly n fives in the periodic part of the continued fraction of sqrt(s). A206585

Right diagonal of triangle in A072467. A72469

Primes of the form (p² - 1)/8 - p, where p is also a prime. A165567

Smallest odd prime number Q such that Q·2^P-1 is also prime with P Mersenne prime exponent A000043(n). A249383

Centered 25-gonal primes. A276264

Numbers n such that 115·2ⁿ-1 is prime. A50583