Properties of the Number -128605

One Hundred Twenty-Eight Thousand Six Hundred Five

Basics

Value: -128606 → -128605 → -128604

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 17 ² × 89

Divisors: 1, 5, 17, 85, 89, 289, 445, 1445, 1513, 7565

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111011001011101

Octal: -373135

Duodecimal: -62511

Hexadecimal: -1f65d

Square: 16539246025

Square Root: 358.6153928653928

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) = 169·n² - 140·n + 29. A156639

Positive numbers y such that y² is of the form x²+(x+839)² with integer x. A159896

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 0, 1), (1, 0, 0), (1, 1, -1)}. A150215