Properties of the Number 39904

Thirty-Nine Thousand Nine Hundred Four

Basics

Value: 39903 → 39904 → 39905

Parity: even

Prime: No

Previous Prime: 39901

Next Prime: 39929

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 29 × 43

Divisors: 1, 2, 4, 8, 16, 29, 32, 43, 58, 86

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001101111100000

Octal: 115740

Duodecimal: 1B114

Hexadecimal: 9be0

Square: 1592329216

Square Root: 199.75985582694037

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

The Wiener index of the P₃ X P_n grid, where P_m is the path graph on m nodes. The Wiener index of a connected graph is the sum of distances between all unordered pairs of nodes in the graph. A180569

σ(n) values in A115920. A216372

Number of (n+2) X (1+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3 X 3 subblock summing to 0 2 4 5 7 or 9. A251645

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9. A251652

Maximum number of induced copies of the paw graph in an n-node graph. A352667

Number of partitions satisfying 0 < cn(0,5) + cn(1,5) + cn(4,5) + cn(2,5) and 0 < cn(0,5) + cn(1,5) + cn(4,5) + cn(3,5). A39904

Number of nX4 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1s. A296401