Properties of the Number 66559

Sixty-Six Thousand Five Hundred Fifty-Nine

Basics

Value: 66558 → 66559 → 66560

Parity: odd

Prime: No

Previous Prime: 66553

Next Prime: 66569

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 101 × 659

Divisors: 1, 101, 659, 66559

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001111111111

Octal: 201777

Duodecimal: 32627

Hexadecimal: 103ff

Square: 4430100481

Square Root: 257.99030989554626

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

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 374", based on the 5-celled von Neumann neighborhood. A281525

Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 205", based on the 5-celled von Neumann neighborhood. A286697

Numbers k such that A163511(k) is a seventh power. A366287

Number of nonempty subsets of {1, 1/2, 1/3, ..., 1/n} that sum to an integer. A111233

Smallest Boolean functions from big equivalence classes representing monotone functions (subsequence of A227723). A349743

a(n) = 2ⁿ⁺¹ + 4^n-1 - 1. A389172

a(n) = ceiling(10^n-1/n). A66559