Properties of the Number 66647

Sixty-Six Thousand Six Hundred Forty-Seven

Basics

Value: 66646 → 66647 → 66648

Parity: odd

Prime: No

Previous Prime: 66643

Next Prime: 66653

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 9521

Divisors: 1, 7, 9521, 66647

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010001010111

Octal: 202127

Duodecimal: 3269B

Hexadecimal: 10457

Square: 4441822609

Square Root: 258.16080260178927

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 partitions of n having no parts with multiplicity 6. A184641

Squares of the form a² + b³ with a, b > 0. A66647

Array read by downward antidiagonals: T(n,k) is the number of partitions of [n], n >= 1, k >= 1, into sets labeled with positive integers, such that the labels sum to k. A387299