Properties of the Number -131207

One Hundred Thirty-One Thousand Two Hundred Seven

Basics

Value: -131208 → -131207 → -131206

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 179 × 733

Divisors: 1, 179, 733, 131207

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000000010000111

Octal: -400207

Duodecimal: -63B1B

Hexadecimal: -20087

Square: 17215276849

Square Root: 362.2250681551458

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) = 2ⁿ - 1 + n*(n-1)/2. A132925

a(n) = ∑_k=0..n-2 T(n,k) * T(n,k+2), with T given by A026769. A27241