Properties of the Number 28655

Twenty-Eight Thousand Six Hundred Fifty-Five

Basics

Value: 28654 → 28655 → 28656

Parity: odd

Prime: No

Previous Prime: 28649

Next Prime: 28657

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 11 × 521

Divisors: 1, 5, 11, 55, 521, 2605, 5731, 28655

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111111101111

Octal: 67757

Duodecimal: 146BB

Hexadecimal: 6fef

Square: 821109025

Square Root: 169.27787805853427

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) = Fibonacci(n+3) - 2. A1911

Number of free n-polyominoids, allowing right-angled connections only ("hard" polyominoids). A365654

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1. A256810

Number of maximal subsets of {1..n} containing no sums of distinct elements. A326498

Expansion of (1-x)/(1-2·x²-x³). A78024

Indices of squares of primes in A098550. A251240

a(n) = Fibonacci(n) OR Fibonacci(n+1). A51123

Partial sums of repeated Fibonacci sequence. A94707

Partial sums of (-1)ⁿ*Fibonacci(n-1). A112469

Partial sums of F(1) - L(1) + F(2) - L(2) + F(3) - L(3) + ..., where F = A000045 and L = A000032. A355018