Properties of the Number -130417

One Hundred Thirty Thousand Four Hundred Seventeen

Basics

Value: -130418 → -130417 → -130416

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 31 × 601

Divisors: 1, 7, 31, 217, 601, 4207, 18631, 130417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111110101110001

Octal: -376561

Duodecimal: -63581

Hexadecimal: -1fd71

Square: 17008593889

Square Root: 361.13293951119994

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

Odd numbers k > 1 such that gcd(5,k) = 1 and 5^(k-1/2) == -(5/k) (mod k), where (5/k) is the Jacobi symbol (or Kronecker symbol); Euler pseudoprimes to base 5 (A262052) that are not Euler-Jacobi pseudoprimes to base 5 (A375914). A375816

E.g.f. satisfies log(A(x)) = x * (exp(x) - 1) * A(x)³. A356798

G.f.: sqrt( ∑_n>=0 xⁿ * ∏_k=1..n (2·k - x) / (1 - 2·k*x) ). A231277

Centered hexagonal numbers that are sphenic numbers. A382628