Properties of the Number 28636

Twenty-Eight Thousand Six Hundred Thirty-Six

Basics

Value: 28635 → 28636 → 28637

Parity: even

Prime: No

Previous Prime: 28631

Next Prime: 28643

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 7159

Divisors: 1, 2, 4, 7159, 14318, 28636

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111111011100

Octal: 67734

Duodecimal: 146A4

Hexadecimal: 6fdc

Square: 820020496

Square Root: 169.22174801130026

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 compositions of n whose run-lengths are all different. A329739

A nonlinear binomial sum. A126

Euler transform of n·A065958(n). A156733

Triangle of labeled rooted trees according to the number of increasing edges. A67948

a(n) = Fibonacci(n+8) - Fibonacci(8). A180673

Seventh diagonal (m=6) of triangle A084938; a(n) = A084938(n+6,n) = (n⁶ + 45·n⁵ + 925·n⁴ + 11475·n³ + 92314·n² + 413640·n)/720. A90392

Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x² + ... + xⁿ to the polynomial A_k*(x+3k)^k for 0 <= k <= n. A248977

Number of integer solutions (a₁, a₂, ... , a₈) to the equation a₁² + 2·a₂² + ... + 8·a₈² = 3·n. A320243

Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 2 and no antidiagonal sum 2 and no row sum 0 and no column sum 0. A255786

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = sqrt(3). A279588