Properties of the Number 44081

Forty-Four Thousand Eighty-One

Basics

Value: 44080 → 44081 → 44082

Parity: odd

Prime: No

Previous Prime: 44071

Next Prime: 44087

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 17 × 2593

Divisors: 1, 17, 2593, 44081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010110000110001

Octal: 126061

Duodecimal: 21615

Hexadecimal: ac31

Square: 1943134561

Square Root: 209.95475703112803

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(n) = numerator(∑_k=1..n 1/(prime(k)-1)). A120271

O.g.f. satisfies: A(x) = ∑_n>=0 (n+1)ⁿ * xⁿ * A(n·x)ⁿ/n! * exp(-(n+1)*x·A(n·x)). A221410

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (-1, 1, 0), (0, 1, 1), (1, 0, 0)}. A149990

Number of 6Xn 0..1 arrays with rows and antidiagonals unimodal. A223684

Numbers n such that string 0,4 occurs in the base 5 representation of n but not of n-1. A44081