Properties of the Number 66506

Sixty-Six Thousand Five Hundred Six

Basics

Value: 66505 → 66506 → 66507

Parity: even

Prime: No

Previous Prime: 66499

Next Prime: 66509

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 3023

Divisors: 1, 2, 11, 22, 3023, 6046, 33253, 66506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001111001010

Octal: 201712

Duodecimal: 325A2

Hexadecimal: 103ca

Square: 4423048036

Square Root: 257.88757240316954

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 set partitions of [n] where the elements of each non-singleton block are pairwise coprime. A320430

Prime pentadecet homolog of {11,13,17,...,61,67}. A37017

Least k > n² such that (k³+1)/(n²+1) is an integer. A66506