Properties of the Number -56868

Fifty-Six Thousand Eight Hundred Sixty-Eight

Basics

Value: -56869 → -56868 → -56867

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 7 × 677

Divisors: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101111000100100

Octal: -157044

Duodecimal: -28AB0

Hexadecimal: -de24

Square: 3233969424

Square Root: 238.47012391492567

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 g.f.: 1/((1 - x - x² + x⁴ - x⁶)*(1 - x² + x⁴ + x⁵ - x⁶)). A147606

a(n) = 16ⁿ * ∑_k=0..n (-1)^k*binomial(-1/2, k)². A358362

a(n) = 3ⁿ - 6·binomial(n,4) - 6·binomial(n,3) - 4·binomial(n,2) - 2·n - 1. A385726

Triangle read by rows: T(n,k) is the number of n-node Stanley graphs containing exactly k isolated points, n>=0, 0<=k<=n. A383655