Properties of the Number 66981

Sixty-Six Thousand Nine Hundred Eighty-One

Basics

Value: 66980 → 66981 → 66982

Parity: odd

Prime: No

Previous Prime: 66977

Next Prime: 67003

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 83 × 269

Divisors: 1, 3, 83, 249, 269, 807, 22327, 66981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010110100101

Octal: 202645

Duodecimal: 32919

Hexadecimal: 105a5

Square: 4486454361

Square Root: 258.80687780659923

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 homeomorphically irreducible general graphs on 6 labeled node and with n edges. A60581

Number of residues of Lucas numbers modulo n. A66981