Properties of the Number 28569

Twenty-Eight Thousand Five Hundred Sixty-Nine

Basics

Value: 28568 → 28569 → 28570

Parity: odd

Prime: No

Previous Prime: 28559

Next Prime: 28571

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 89 × 107

Divisors: 1, 3, 89, 107, 267, 321, 9523, 28569

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110011001

Octal: 67631

Duodecimal: 14649

Hexadecimal: 6f99

Square: 816187761

Square Root: 169.02366698187564

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

Sum of the sixth largest parts of the partitions of n into 9 parts. A326468

Pseudo-bricks with n nodes. A6293

Total number of consecutive pairs across all heapable permutations of length n. A389301

a(n) = ceiling(n*φ¹⁷), where φ is the golden ratio, A001622. A4972

Number of nonnegative integer arrays of length n+4 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1. A211837

Ramanujan's τ function (or Ramanujan numbers, or τ numbers). A594

a(n) = n*(n + 9). A28569

Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n) XOR a(n+1) is a cube (where XOR denotes the XOR binary operator). A296615

Number of 7-member subsets of [7·n] whose elements sum to a multiple of n. A318628