Properties of the Number -126891

One Hundred Twenty-Six Thousand Eight Hundred Ninety-One

Basics

Value: -126892 → -126891 → -126890

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 23 × 613

Divisors: 1, 3, 9, 23, 69, 207, 613, 1839, 5517, 14099

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110111110101011

Octal: -367653

Duodecimal: -61523

Hexadecimal: -1efab

Square: 16101325881

Square Root: 356.217630108337

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

a(n) = -4·a(n-3) + 11·a(n-2) - a(n-1), a(0) = 13, a(1) = -19, a(2) = 162. A153266

a(n) = 2ⁿ - Fibonacci(n+2). A8466