Properties of the Number 55806

Fifty-Five Thousand Eight Hundred Six

Basics

Value: 55805 → 55806 → 55807

Parity: even

Prime: No

Previous Prime: 55799

Next Prime: 55807

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 71 × 131

Divisors: 1, 2, 3, 6, 71, 131, 142, 213, 262, 393

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100111111110

Octal: 154776

Duodecimal: 28366

Hexadecimal: d9fe

Square: 3114309636

Square Root: 236.23293589167452

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 nX4 0..3 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, no adjacent elements equal, and upper left element zero. A230827

T(n,k)=Number of nXk 0..3 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, no adjacent elements equal, and upper left element zero. A230831

a(n) = T(n,n-6), array T as in A055801. A55806

Numerators in a product expansion for sqrt(3). A219012