Properties of the Number 81095

Eighty-One Thousand Ninety-Five

Basics

Value: 81094 → 81095 → 81096

Parity: odd

Prime: No

Previous Prime: 81083

Next Prime: 81097

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 7 ² × 331

Divisors: 1, 5, 7, 35, 49, 245, 331, 1655, 2317, 11585

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011000111

Octal: 236307

Duodecimal: 3AB1B

Hexadecimal: 13cc7

Square: 6576399025

Square Root: 284.7718384953119

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 ways to place 9 nonattacking kings on an n X n toroidal board. A180067

a(n) = n*(12·n³ + 10·n² - 9·n - 7)/6. A172080

5th differences of partition numbers A000041. A81095

Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most seven elements. A276723