Properties of the Number 28689

Twenty-Eight Thousand Six Hundred Eighty-Nine

Basics

Value: 28688 → 28689 → 28690

Parity: odd

Prime: No

Previous Prime: 28687

Next Prime: 28697

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 73 × 131

Divisors: 1, 3, 73, 131, 219, 393, 9563, 28689

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000010001

Octal: 70021

Duodecimal: 14729

Hexadecimal: 7011

Square: 823058721

Square Root: 169.3782748760891

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 equivalence classes of convex lattice polygons of genus n. A322343

T(n,k) = count of degree k monomials in the complete homogeneous symmetric polynomials h(μ,k) summed over all partitions μ of n. A209666

Number of partitions of n where each part i is marked with a word of length i over a ternary alphabet whose letters appear in alphabetical order. A261737

Total Wiener index of double-star trees with n nodes. A186235

Numbers n such that n·2²²⁰³ - 1 is prime. A265503

Expansion of (1-x)^-1/(1-x+2·x²+2·x³). A77878

Number of n X n binary arrays with rows and columns, considered as graycode numbers, in nondecreasing order, and no more than 4 ones in any row or column. A162068

Sorted Galois numbers. A28689