Properties of the Number -5130

One Hundred Thirty

Basics

Value: -5131 → -5130 → -5129

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 5 × 19

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010000001010

Octal: -12012

Duodecimal: -2B76

Hexadecimal: -140a

Square: 26316900

Square Root: 71.62401831787993

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 e.g.f.: arctan(arctan(x)+log(x+1))=2·x-1/2!*x²-16/3!*x³+42/4!*x⁴+756/5!*x⁵... A12963

Expansion of e.g.f. arctan(tanh(x) + log(x+1)). A13121

T(n, k) = [x^k] 2ⁿ*(Euler(n, x/2) + Euler(n, x)), where Euler(n, x) are the Euler polynomials. Triangle read by rows, T(n, k) for 0 <= k <= n. A342314

Expansion of 1/((1-x)⁴*(1+x)). A2623

Number of partitions of n such that some part is a sum of two or more other parts. A237668

Second heptagonal numbers: a(n) = n*(5·n+3)/2. A147875

a(n) = n*(n+1)*(4·n+5)/6. A16061

a(n) is the solution to the postage stamp problem with 4 denominations and n stamps. A1209

a(n) = ∑_d∣n binomial(n/d+d-2, d-1). A157019

Number of partitions of n for which 2*(number of distinct parts) <= (number of parts). A237363