Properties of the Number 56420

Fifty-Six Thousand Four Hundred Twenty

Basics

Value: 56419 → 56420 → 56421

Parity: even

Prime: No

Previous Prime: 56417

Next Prime: 56431

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 7 × 13 × 31

Divisors: 1, 2, 4, 5, 7, 10, 13, 14, 20, 26

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101110001100100

Octal: 156144

Duodecimal: 28798

Hexadecimal: dc64

Square: 3183216400

Square Root: 237.5289456045305

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

Integers that are Rhonda numbers to base 8. A100970

Triangle read by rows: T(n, k) = ∑_d=0..n-k binomial(n, d)*StirlingS2(n-d, k)*8^n-d-k, with 0 <= k <= n. A364071

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x+84847)² = y². A201917

Numbers k such that the sum of the norm of divisors of k in Gaussian integers is divisible by k. A332736

T(2n+1, n+1), T given by A026758. A26876

Number of primitive (period n) step cyclic shifted sequences using a maximum of three different symbols. A56420