Properties of the Number 66415

Sixty-Six Thousand Four Hundred Fifteen

Basics

Value: 66414 → 66415 → 66416

Parity: odd

Prime: No

Previous Prime: 66413

Next Prime: 66431

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 37 × 359

Divisors: 1, 5, 37, 185, 359, 1795, 13283, 66415

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101101111

Octal: 201557

Duodecimal: 32527

Hexadecimal: 1036f

Square: 4410952225

Square Root: 257.71107853563456

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 equal to a permutation (or rearrangement) of the digits of the sum of their proper divisors (excluding the proper divisor 1). Rearrangements which cause leading zeros are excluded. A86248

Triangle read by rows: T(n,k) = number of graphs on n nodes with domatic number k (n >= 1, 1 <= k <= n). A294206

Number of ways to place 5 nonattacking kings on a 5 X n board. A172204

Denominators of coefficients in series expansion of -512*(1+x)³/(x-8)³. A66415