Properties of the Number 81295

Eighty-One Thousand Two Hundred Ninety-Five

Basics

Value: 81294 → 81295 → 81296

Parity: odd

Prime: No

Previous Prime: 81293

Next Prime: 81299

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 71 × 229

Divisors: 1, 5, 71, 229, 355, 1145, 16259, 81295

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110001111

Octal: 236617

Duodecimal: 3B067

Hexadecimal: 13d8f

Square: 6608877025

Square Root: 285.12278057005545

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 non-Look-and-Say partitions of n. Number of integer partitions of n such that there is no way to choose a disjoint strict integer partition of each multiplicity. A351293

Row sums of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1) + T(j,k-1) for 2 <= k <= j. A131076

a(n) = (-1)ⁿ⁺¹ * coefficient of xⁿ in ∑_k>=1 x^k/(1+2·x^k). A81295