Properties of the Number 28366

Twenty-Eight Thousand Three Hundred Sixty-Six

Basics

Value: 28365 → 28366 → 28367

Parity: even

Prime: No

Previous Prime: 28351

Next Prime: 28387

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 13 × 1091

Divisors: 1, 2, 13, 26, 1091, 2182, 14183, 28366

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111011001110

Octal: 67316

Duodecimal: 144BA

Hexadecimal: 6ece

Square: 804629956

Square Root: 168.422088812602

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 length n+5 0..k arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four. A249085

Number of length n+5 0..5 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four. A249082

Number of length 2+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four. A249087

a(1) = 1, a(2) = 2; for n >= 3, a(n) = (n-1)³ - a(n-1) - a(n-2). A361134

a(n) = (2ⁿ - 1)!. A28366