Properties of the Number 66447

Sixty-Six Thousand Four Hundred Forty-Seven

Basics

Value: 66446 → 66447 → 66448

Parity: odd

Prime: No

Previous Prime: 66431

Next Prime: 66449

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 23 × 107

Divisors: 1, 3, 9, 23, 27, 69, 107, 207, 321, 621

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001110001111

Octal: 201617

Duodecimal: 32553

Hexadecimal: 1038f

Square: 4415203809

Square Root: 257.77315608883714

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 split semiorders on n points. A58259

Numbers k such that the smoothly undulating palindromic number (79·10^k - 97)/99 is a prime. A62226

Number of basis partitions (or basic partitions) of n. A66447