Properties of the Number -161638

One Hundred Sixty-One Thousand Six Hundred Thirty-Eight

Basics

Value: -161639 → -161638 → -161637

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 80819

Divisors: 1, 2, 80819, 161638

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111011101100110

Octal: -473546

Duodecimal: -7965A

Hexadecimal: -27766

Square: 26126843044

Square Root: 402.0422863331667

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

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, 0, 1), (0, -1, 1), (0, 1, -1), (1, 0, 0)}. A148114

G.f.: [ ∑_n>=0 (n+1) * 2^n² * xⁿ ]^1/2. A202947