Properties of the Number 56216

Fifty-Six Thousand Two Hundred Sixteen

Basics

Value: 56215 → 56216 → 56217

Parity: even

Prime: No

Previous Prime: 56209

Next Prime: 56237

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 7027

Divisors: 1, 2, 4, 8, 7027, 14054, 28108, 56216

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101101110011000

Octal: 155630

Duodecimal: 28648

Hexadecimal: db98

Square: 3160238656

Square Root: 237.09913538433665

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) = ∑_{k=0..floor(n/3)} (-1)^k * binomial(n-2·k,k) * Catalan(k). A360025

Sum of orders of all 2 X 2 matrices with entries mod n. A6045

a(n) is the optimal wire-length for an n X n grid. A195647

Primes p whose period of reciprocal equals (p-1)/11. A56216