Properties of the Number 43158

Forty-Three Thousand One Hundred Fifty-Eight

Basics

Value: 43157 → 43158 → 43159

Parity: even

Prime: No

Previous Prime: 43151

Next Prime: 43159

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 7193

Divisors: 1, 2, 3, 6, 7193, 14386, 21579, 43158

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100010010110

Octal: 124226

Duodecimal: 20B86

Hexadecimal: a896

Square: 1862612964

Square Root: 207.74503604177886

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 (7+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically. A258560

A recursion triangle sequence based on the Eulerian numbers: A(n,k)=n·A(n-1,k-1)+k·Eulerian(n-1,k). A157743

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically. A258554

Numbers k such that 0 and 7 occur juxtaposed in the base-8 representation of k but not of k-1. A43158