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Properties of the Number -118280

One Hundred Eighteen Thousand Two Hundred Eighty

Basics

Value: -118281 → -118280 → -118279

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 3 × 5 × 2957

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 2957, 5914

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100111000001000

Octal: -347010

Duodecimal: -58548

Hexadecimal: -1ce08

Square: 13990158400

Square Root: 343.91859501922835

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. exp(1 - exp(1 - exp(x))). A308518
T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero. A199832
E.g.f.: A(x,y) = (cosh(x)*cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)*sinh(y)), where A(x,y) = ∑n>=0 ∑k>=0 T(n,k) * xn*yk/(n!*k!), as a square table of coefficients T(n,k) read by antidiagonals. A322190
E.g.f.: S(x,y) = (sinh(x) + sinh(y)) / (1 - sinh(x)*sinh(y)), where S(x,y) = ∑n>=0 ∑k=0..2·n+1 T(n,k) * x2·n+1-k*yk/((2·n+1-k)!*k!), as a triangle of coefficients T(n,k) read by rows. A322194
Number of -4..4 arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero. A199828
Number of -n..n arrays x(0..6) of 7 elements with zero sum and no two neighbors summing to zero. A199836
Array T(n,k) = β(2·n, -k), where β(i,j) are the polycotangent numbers, for n,k >= 0, read by ascending antidiagonals. A353953