Properties of the Number -136681

One Hundred Thirty-Six Thousand Six Hundred Eighty-One

Basics

Value: -136682 → -136681 → -136680

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 103 × 1327

Divisors: 1, 103, 1327, 136681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001010111101001

Octal: -412751

Duodecimal: -67121

Hexadecimal: -215e9

Square: 18681695761

Square Root: 369.70393560253046

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) = a(n-1) + 5·a(n-2), with a(0) = a(1) = 1. A15440

Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. exp(∑_j=1..k j²*x^j). A293724

Strong pseudoprimes to base 34. A20260

Strong pseudoprimes to base 39. A20265