Properties of the Number 55816

Fifty-Five Thousand Eight Hundred Sixteen

Basics

Value: 55815 → 55816 → 55817

Parity: even

Prime: No

Previous Prime: 55813

Next Prime: 55817

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 6977

Divisors: 1, 2, 4, 8, 6977, 13954, 27908, 55816

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1101101000001000

Octal: 155010

Duodecimal: 28374

Hexadecimal: da08

Square: 3115425856

Square Root: 236.25410049351524

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) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise. A235765

Number of multisets of nonempty words with a total of n letters over ternary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter. A293733

E.g.f.: -tan(log(cos(x))), even powers only. A12001

Number of (n+1)X(2+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise. A235759

Number of (n+1) X (6+1) 0..1 arrays with the sum of each 2 X 2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise. A235763

Quadruples of different integers from [ 1,n ] with no common factors between triples. A15625

Quadruples of different integers from [ 2,n ] with no common factors between triples. A15629

a(n) = T(2·n+4,n), array T as in A055807. A55816