Properties of the Number 56020

Fifty-Six Thousand Twenty

Basics

Value: 56019 → 56020 → 56021

Parity: even

Prime: No

Previous Prime: 56009

Next Prime: 56039

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 2801

Divisors: 1, 2, 4, 5, 10, 20, 2801, 5602, 11204, 14005

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101011010100

Octal: 155324

Duodecimal: 28504

Hexadecimal: dad4

Square: 3138240400

Square Root: 236.6854452643846

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

Triangle read by rows: semigroups of order n with k idempotents, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator). A58123

Number of binary sequences of length n with no subsequence 0101. A118870

Numbers n such that 17ⁿ is the highest power of 17 dividing A240751(n). A286008

Sums of squares of primitive roots of primes. A89453

Expansion of 4·x²/(1 - x - 9·x² + x³). A271945

Numbers that are congruent to +-1 mod 9. A56020