Properties of the Number -7137

One Hundred Thirty-Seven

Basics

Value: -7138 → -7137 → -7136

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 61

Divisors: 1, 3, 9, 13, 39, 61, 117, 183, 549, 793

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101111100001

Octal: -15741

Duodecimal: -4169

Hexadecimal: -1be1

Square: 50936769

Square Root: 84.48076704197234

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

Expansion of (1-x)/(1-x+x³). A78013

G.f.: 1/(1 + x + 2·x² + 2·x³ + x⁴). A199744

Expansion of (1-x²)/(1-x-x²+x³+x⁴). A101496

Array of coefficients of powers of x² for S(2·n,x)³ with Chebyshev's S polynomials A049310. A220666

Multiples of 13 containing a 13 in their decimal representation. A121033

Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 7. A116180

-3-Knödel numbers. A225507

9-step Fibonacci sequence starting with 0,0,1,0,0,0,0,0,0. A251751

Integers that need 6 iterations of the map x->A352172(x) to reach 1. A352264

Expansion of 1/(1+x+2·x²+x³). A77979