Properties of the Number 56815

Fifty-Six Thousand Eight Hundred Fifteen

Basics

Value: 56814 → 56815 → 56816

Parity: odd

Prime: No

Previous Prime: 56813

Next Prime: 56821

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 11 × 1033

Divisors: 1, 5, 11, 55, 1033, 5165, 11363, 56815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101110111101111

Octal: 156757

Duodecimal: 28A67

Hexadecimal: ddef

Square: 3227944225

Square Root: 238.3589729798314

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

a(n) = floor(3ⁿ / 2ⁿ). A2379

Values of floor((3/2)ⁿ) that are composite. A70758

Expansion of 1/( (1-x)*(1 + x² + x³) ). A77889

Round (3/2)ⁿ. A179523

Lengths of binary representations of prime Fibonacci numbers. A215367

Expansion of (1-x)^-1/(1+2·x+x²-x³). A77929

Number of subsets of {1,2,...,n} such that no two elements differ by 1, 2, 3, or 5. A375185

Primes with prime "look and say" descriptions. A56815