Properties of the Number 86641

Eighty-Six Thousand Six Hundred Forty-One

Basics

Value: 86640 → 86641 → 86642

Parity: odd

Prime: No

Previous Prime: 86629

Next Prime: 86677

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 23 × 3767

Divisors: 1, 23, 3767, 86641

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001001110001

Octal: 251161

Duodecimal: 42181

Hexadecimal: 15271

Square: 7506662881

Square Root: 294.3484329837684

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

Numerator of x(n) = ∑_k=1..n ((odd part of k)/(k⁵)). A111922

Expansion of ∏_k>=1 1/(1 - (5·k-4)*x^5·k-4). A265834

Odd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) ≠ 1. A112079

a(n) = 60·n² + 1. A158673

Number of compositions (ordered partitions) of n³ into distinct cubes. A331899

Numbers k such that all coprime quadratic residues modulo k are squares. A303704

Permanents of the character tables that appear in A085805. A86641