Properties of the Number 51904

Fifty-One Thousand Nine Hundred Four

Basics

Value: 51903 → 51904 → 51905

Parity: even

Prime: No

Previous Prime: 51899

Next Prime: 51907

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 811

Divisors: 1, 2, 4, 8, 16, 32, 64, 811, 1622, 3244

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 1100101011000000

Octal: 145300

Duodecimal: 26054

Hexadecimal: cac0

Square: 2694025216

Square Root: 227.82449385437027

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

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change -1,1 1,0 1,-1 or 0,-1. A264336

Irregular triangle read by rows: T(n,k) (1 <= k <= 2·n) = number of n X k Baxter matrices in which all row sums are 2. A347679

Numerator of Hermite(n, 16/21). A159763

Number of (n+1) X (5+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250780

Number of (n+1) X (4+1) arrays of permutations of 0..n·5+4 with each element having directed index change -1,1 1,0 1,-1 or 0,-1. A264332

Number of (n+1)X(7+1) arrays of permutations of 0..n·8+7 with each element having directed index change -1,1 1,0 1,-1 or 0,-1. A264335

Minimal exponent in prime factorization of n. A51904

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250783