Properties of the Number 66558

Sixty-Six Thousand Five Hundred Fifty-Eight

Basics

Value: 66557 → 66558 → 66559

Parity: even

Prime: No

Previous Prime: 66553

Next Prime: 66569

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 11093

Divisors: 1, 2, 3, 6, 11093, 22186, 33279, 66558

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001111111110

Octal: 201776

Duodecimal: 32626

Hexadecimal: 103fe

Square: 4429967364

Square Root: 257.98837183098

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(n) = 2^{n + 1} + 4^{n - 1} - 2. A290718

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = (odd natural numbers). A24473

Binomial transform of A007318 (Pascal's triangle by rows). A106462

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 nonincreasing x(i,j)-x(i-1,j) in the j direction. A250742

a(n) = A066557(n)/n. A66558