Properties of the Number 28568

Twenty-Eight Thousand Five Hundred Sixty-Eight

Basics

Value: 28567 → 28568 → 28569

Parity: even

Prime: No

Previous Prime: 28559

Next Prime: 28571

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 3571

Divisors: 1, 2, 4, 8, 3571, 7142, 14284, 28568

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110011000

Octal: 67630

Duodecimal: 14648

Hexadecimal: 6f98

Square: 816130624

Square Root: 169.0207087903728

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 integer partitions of n that have an even number of parts and cannot be partitioned into distinct pairs of not necessarily distinct parts. A338915

a(n) = floor(n*φ¹⁷), where φ is the golden ratio, A001622. A4932

a(n) = 8·Lucas(n). A258160

a(n) = number of steps required to reach 0 from F(n+2) by repeatedly subtracting from a natural number the number of ones in its Zeckendorf representation. Here F(n) = the n-th Fibonacci number, F(0) = 0, F(1) = 1, F(2) = 1, F(3) = 2, ... A261082

Number of edges formed in a square by straight line segments when connecting the four corner vertices to the points dividing the sides into n equal parts. A355948

s(k)-s(j), where the pairs (k,j) are given by A205867 and A205868, and s(k) denotes the (k+1)-st Fibonacci number. A205869

Row sums of triangle A144334, binomial transform of [1, 2, 6, 7, 3, 0, 0, 0, ...]. A144335

a(1) = 2, a(n) = (n-th-even n³) - (sum of previous terms). A181509

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 382", based on the 5-celled von Neumann neighborhood. A271541

Number of n-tuples (p₁, p₂, ..., p_n) of positive integers such that p_i-1 <= p_i <= prime(i). A354621