Properties of the Number 43190

Forty-Three Thousand One Hundred Ninety

Basics

Value: 43189 → 43190 → 43191

Parity: even

Prime: No

Previous Prime: 43189

Next Prime: 43201

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 7 × 617

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 617, 1234

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100010110110

Octal: 124266

Duodecimal: 20BB2

Hexadecimal: a8b6

Square: 1865376100

Square Root: 207.82203925474315

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(1) = 1, a(2) = 2, a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-2)*a(2) for n >= 3. A14431

Number of 3 X n binary matrices with distinct rows, up to row and column permutation; (n,3)-hypergraphs (including empty hyperedge but excluding multiple hyperedges). A55194

Numbers n with property that n² is a sum of some 120 successive primes. A166262

Numbers k such that Bernoulli number B_k has denominator 4686. A295770

Engel expansion for iⁱ = exp(-π/2). A83283

Number of 2Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself. A266034

Number of 2Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself. A266056

Numbers k such that 1 and 4 occur juxtaposed in the base-9 representation of k but not of k-1. A43190