Properties of the Number 66188

Sixty-Six Thousand One Hundred Eighty-Eight

Basics

Value: 66187 → 66188 → 66189

Parity: even

Prime: No

Previous Prime: 66179

Next Prime: 66191

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 16547

Divisors: 1, 2, 4, 16547, 33094, 66188

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001010001100

Octal: 201214

Duodecimal: 32378

Hexadecimal: 1028c

Square: 4380851344

Square Root: 257.270285886264

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

Number of edges formed in a square by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on each of the two adjacent edges of the square. A358409

Expansion of (1+t²+4·t³+2·t⁴+t⁵+3·t⁶)/((1-t)²*(1-t²)*(1-t³)²). A100779

Number of defective 4-colorings of an n X 7 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..3 order. A229577

T(n,k) = number of defective 4-colorings of an n X k 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..3 order. A229578

Sum of the second moments of all partitions of n with weights starting from 0. A66188