Properties of the Number 43730

Forty-Three Thousand Seven Hundred Thirty

Basics

Value: 43729 → 43730 → 43731

Parity: even

Prime: No

Previous Prime: 43721

Next Prime: 43753

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 4373

Divisors: 1, 2, 5, 10, 4373, 8746, 21865, 43730

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010101011010010

Octal: 125322

Duodecimal: 21382

Hexadecimal: aad2

Square: 1912312900

Square Root: 209.11719202399405

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

Numbers n such that 3ⁿ + 2^n-1 is prime. A82103

Numbers k such that binomial(4k, k) - 1 is prime. A125240

Riordan's general Eulerian recursion: T(n,k) = (k+2)*T(n-1, k) + (n-k) * T(n-1, k-1), with T(n,0) = 1, T(n,n) = 0. A157012

a(n) is the position of A051451(n) in A025487. A346407

Numbers whose number of runs in their base-2 representation is congruent to 2 mod 5. A43730

Irregular table read by rows: The number of k-faced polyhedra, where k>=4, created when an elongated n-bipyramid, with faces that are squares and equilateral triangles, is internally cut by all the planes defined by any three of its vertices. A339538

Table read by antidiagonals: T(h,n) is the number of n-step self avoiding walks on a 2D square grid confined to an infinite strip of height 2h where the walk starts at coordinate (0,h). A336988