Properties of the Number 81151

Eighty-One Thousand One Hundred Fifty-One

Basics

Value: 81150 → 81151 → 81152

Parity: odd

Prime: No

Previous Prime: 81131

Next Prime: 81157

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 11593

Divisors: 1, 7, 11593, 81151

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011111111

Octal: 236377

Duodecimal: 3AB67

Hexadecimal: 13cff

Square: 6585484801

Square Root: 284.87014585596717

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

A symmetrical triangle of leading ones adjusted polynomial coefficients based on Hermite orthogonal polynomials: t(n,m)=CoefficientList[HermiteH[n, x], x][[m + 1]] + Reverse[CoefficientList[ HermiteH[n, x], x]][[m + 1]] - (CoefficientList[HermiteH[n, x], x][[1]] + Reverse[CoefficientList[HermiteH[n, x], x]][[1]]) + 1. A176411

Number of even cycles in range [A014137(2n-1)..A014138(2n-1)] of permutation A057505/A057506. A81151