Properties of the Number -87665

Eighty-Seven Thousand Six Hundred Sixty-Five

Basics

Value: -87666 → -87665 → -87664

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 89 × 197

Divisors: 1, 5, 89, 197, 445, 985, 17533, 87665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101011001110001

Octal: -253161

Duodecimal: -42895

Hexadecimal: -15671

Square: 7685152225

Square Root: 296.08275870100914

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 (1 / theta₄(x) - 1)⁵ / 32. A341366

Positive numbers y such that y² is of the form x²+(x+89)² with integer x. A160055

a(n) = diagonal sum of left-justified array T given by A027052. A27069

Triangle read by rows: T(n,k) = 2·A011971(n,k) - 1. A136791

Expansion of x⁷/(1-2·x-2·x²+x³+x⁸). A172399