Properties of the Number 28630

Twenty-Eight Thousand Six Hundred Thirty

Basics

Value: 28629 → 28630 → 28631

Parity: even

Prime: No

Previous Prime: 28627

Next Prime: 28631

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 7 × 409

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 409, 818

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111111010110

Octal: 67726

Duodecimal: 1469A

Hexadecimal: 6fd6

Square: 819676900

Square Root: 169.20401886480118

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

Preperiod (or threshold) of orbit of Post's {00, 1101} tag system applied to the word (100)ⁿ, or -1 if this word has an unbounded trajectory. A284119

Number of unlabeled set-systems with {} that are closed under intersection and cover n vertices. A326883

a(n) is the position of the last two-tuple within the reverse lexicographic set of partitions of 2n and 2n+1, with a(1)-a(n) representing the positions of every 2-tuple partition of 2n and 2n+1. A216053

Number of compositions of n with strictly increasing run-lengths. A333192

Number of permutations with at most 2 queens on any torus diagonal, solutions congruent on the torus count only once. A62167

Number of elements e in all partitions of n such that e divides n. A89251

Values of·in solutions (x,y,z) to the Diophantine equation x³-x²+y³-y²=z³-z², with 1<x<y<z. A138667

Number of unlabeled multigraphs with loops allowed and n edges covering three vertices. A327728

(n-th Fibonacci number that is not 1) - (n-th number that is 1 or not a Fibonacci number). A14242

a(n) = 7·2ⁿ - 3·n - 6. A97810