Properties of the Number -131665

One Hundred Thirty-One Thousand Six Hundred Sixty-Five

Basics

Value: -131666 → -131665 → -131664

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 17 × 1549

Divisors: 1, 5, 17, 85, 1549, 7745, 26333, 131665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000001001010001

Octal: -401121

Duodecimal: -64241

Hexadecimal: -20251

Square: 17335672225

Square Root: 362.8567210346255

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 symmetrical triangle of polynomial coefficients:p(x,n)=If[n == 0, 1, (1 - x)^{n + 1}*Sum[((2·k + 1)ⁿ + (k + 1)ⁿ + kⁿ)*x^k, {k, 0, Infinity}]/2]. A177984

Matrix inverse of the triangle of Eulerian numbers T(n,k), 0<=k<=n, read by rows. A224228