Properties of the Number 44148

Forty-Four Thousand One Hundred Forty-Eight

Basics

Value: 44147 → 44148 → 44149

Parity: even

Prime: No

Previous Prime: 44131

Next Prime: 44159

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 13 × 283

Divisors: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1010110001110100

Octal: 126164

Duodecimal: 21670

Hexadecimal: ac74

Square: 1949045904

Square Root: 210.11425463304482

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 ways to place m nonattacking queens on an m X n board, 1 <= m <= n (triangular array). A269133

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301361

Number of permutations of length n sortable by 4 passes through a pop-stack. A293775

The profiles of the backtrack tree for the n queens problem, triangle read by rows. A319284

Number of ways to place 8 nonattacking queens on an 8 X n board. A172449

Number of 6-step one space at a time bishop's tours on an n X n board summed over all starting positions. A187159

Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301359

Omit the initial 1 from A000141 and take the Mobius transform. A190622

Number of n X n 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301355

Number of permutations p of [n] such that i + p(i) is composite for all i. A392408