Properties of the Number 55904

Fifty-Five Thousand Nine Hundred Four

Basics

Value: 55903 → 55904 → 55905

Parity: even

Prime: No

Previous Prime: 55903

Next Prime: 55921

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁵ × 1747

Divisors: 1, 2, 4, 8, 16, 32, 1747, 3494, 6988, 13976

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101101001100000

Octal: 155140

Duodecimal: 28428

Hexadecimal: da60

Square: 3125257216

Square Root: 236.4402672981064

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+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254512

a(n) = ∑_k=1..n floor(n/k)³. A318742

Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1<=k<=m positions can be picked in an m X m square grid such that the picked positions have a line symmetry but no point symmetry. A292156

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically. A254819

Cube root of A030683. A30684

Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254505

Numerator of Hermite(n, 8/25). A160012

Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254508

Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254515

Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically. A254815