Properties of the Number 66389

Sixty-Six Thousand Three Hundred Eighty-Nine

Basics

Value: 66388 → 66389 → 66390

Parity: odd

Prime: No

Previous Prime: 66383

Next Prime: 66403

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 197 × 337

Divisors: 1, 197, 337, 66389

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101010101

Octal: 201525

Duodecimal: 32505

Hexadecimal: 10355

Square: 4407499321

Square Root: 257.6606295109907

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 integer partitions of n such that it is not possible to choose a different constant integer partition of each part. A387329

Expansion of 1/(1 - ∑_k>=1 μ(2·k-1)²*x^2·k-1), where μ() is the Moebius function (A008683). A280198

Number of 2-generated groups of order n: groups that have a generating set of size <=2, i.e., are cyclic or of the form <a,b>. A66389