Properties of the Number 47780

Forty-Seven Thousand Seven Hundred Eighty

Basics

Value: 47779 → 47780 → 47781

Parity: even

Prime: No

Previous Prime: 47779

Next Prime: 47791

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 2389

Divisors: 1, 2, 4, 5, 10, 20, 2389, 4778, 9556, 11945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101010100100

Octal: 135244

Duodecimal: 23798

Hexadecimal: baa4

Square: 2282928400

Square Root: 218.58636736997119

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

a(1)=a(2)=1. a(n+1) = a(n) + a(largest prime dividing n). A128215

Number of (n+1) X (5+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings). A235286

Number of inequivalent ways to color faces of a cube using at most n colors. A47780

T(n,k) is the number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings). A235289