Properties of the Number 43945

Forty-Three Thousand Nine Hundred Forty-Five

Basics

Value: 43944 → 43945 → 43946

Parity: odd

Prime: No

Previous Prime: 43943

Next Prime: 43951

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 11 × 17 × 47

Divisors: 1, 5, 11, 17, 47, 55, 85, 187, 235, 517

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010101110101001

Octal: 125651

Duodecimal: 21521

Hexadecimal: aba9

Square: 1931163025

Square Root: 209.6306275332877

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

Ninth convolution of A001045(n+1) (generalized (1,2)-Fibonacci), n>=0, with itself. A73379

Indices where prime(n) first appears in A373902. A371618

a(n) = a(n-1) + a(n-2) + a(n-4) with a(0) = 2, a(1) = 3, a(2) = 6, a(3) = 9. A95982

a(n) = floor((3ⁿ - 2ⁿ)/n). A191694

Pairs of nodes in a complete binary tree that are at an absolute height difference of less than 2 from each other. A251743

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero. A298504

Numbers k such that 2 and 3 occur juxtaposed in the base-8 representation of k but not of k+1. A43945