Properties of the Number 66422

Sixty-Six Thousand Four Hundred Twenty-Two

Basics

Value: 66421 → 66422 → 66423

Parity: even

Prime: No

Previous Prime: 66413

Next Prime: 66431

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 33211

Divisors: 1, 2, 33211, 66422

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001101110110

Octal: 201566

Duodecimal: 32532

Hexadecimal: 10376

Square: 4411882084

Square Root: 257.7246592780753

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

Numbers k such that 2^k - 3 is prime. A50414

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 785", based on the 5-celled von Neumann neighborhood. A273559

Number of ways to place 4n nonattacking kings on an 8 X 2n cylindrical chessboard. A194646

a(n) = least k such that φ^k(n) + 1 is prime, where φ^k denotes application of φ k times. A66422