Properties of the Number 80871

Eighty Thousand Eight Hundred Seventy-One

Basics

Value: 80870 → 80871 → 80872

Parity: odd

Prime: No

Previous Prime: 80863

Next Prime: 80897

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 3851

Divisors: 1, 3, 7, 21, 3851, 11553, 26957, 80871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101111100111

Octal: 235747

Duodecimal: 3A973

Hexadecimal: 13be7

Square: 6540118641

Square Root: 284.37826921197757

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

Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k increasing cycles (0<=k<=n). A cycle (b(1), b(2), ...) is said to be increasing if, when written with its smallest element in the first position, it satisfies b(1) < b(2) < b(3) < ... . A186754

Numbers k such that k¹² == 1 (mod 13⁴). A56095

a(n)*a(n+3) - a(n+1)*a(n+2) = 3, given a(0)=a(1)=1, a(2)=4. A80871