Properties of the Number 44019

Forty-Four Thousand Nineteen

Basics

Value: 44018 → 44019 → 44020

Parity: odd

Prime: No

Previous Prime: 44017

Next Prime: 44021

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 67 × 73

Divisors: 1, 3, 9, 67, 73, 201, 219, 603, 657, 4891

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010101111110011

Octal: 125763

Duodecimal: 21583

Hexadecimal: abf3

Square: 1937672361

Square Root: 209.80705421887035

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 integer partitions of n with no difference -2. A350842

a(n) = a(n-1) + 2·a(floor(n/2)) if n > 0, otherwise 1. A58039

Triangle read by rows: T(n,k) is the number of weighted lattice paths in L_n having k (1,-1)-returns to the horizontal axis. The members of L_n are paths of weight n that start at (0,0), end on the horizontal axis and whose steps are of the following four kinds: an (1,0)-step with weight 1, an (1,0)-step with weight 2, a (1,1)-step with weight 2, and a (1,-1)-step with weight 1. The weight of a path is the sum of the weights of its steps. A182896

Number of (2+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250814

Arises from enumeration of a certain class of zig-zag knight's paths on the square grid. A368376

Numbers k such that 2 and 9 occur juxtaposed in the base-10 representation of k but not of k+1. A44019