Properties of the Number 66579

Sixty-Six Thousand Five Hundred Seventy-Nine

Basics

Value: 66578 → 66579 → 66580

Parity: odd

Prime: No

Previous Prime: 66571

Next Prime: 66587

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 22193

Divisors: 1, 3, 22193, 66579

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010000010011

Octal: 202023

Duodecimal: 32643

Hexadecimal: 10413

Square: 4432763241

Square Root: 258.0290681299299

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

Half the number of n X 5 binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row. A69405

The number of permutations of length n in a particular geometric grid class. A226431

Half the number of 4 X n binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row. A69397

Infinite sequence starting with a(0)=0 such that A049820(a(k)) = a(k-1) for all k>=1, where A049820(n) = n - (number of divisors of n). A259934

Infinite sequence of positive integers such that a(n) = A000005(a(1) + a(2) + ... + a(n)) for all n >= 1. A259935

Erroneous version of A113315. A66579