Properties of the Number 81697

Eighty-One Thousand Six Hundred Ninety-Seven

Basics

Value: 81696 → 81697 → 81698

Parity: odd

Prime: No

Previous Prime: 81689

Next Prime: 81701

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 7 × 11 × 1061

Divisors: 1, 7, 11, 77, 1061, 7427, 11671, 81697

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111100100001

Octal: 237441

Duodecimal: 3B341

Hexadecimal: 13f21

Square: 6674399809

Square Root: 285.8268706752394

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

Cubic star numbers: a(n) = n³ + 4*∑_i=0..n-1 i². A51673

10-level labeled rooted trees with n leaves. A81697