Properties of the Number 28683

Twenty-Eight Thousand Six Hundred Eighty-Three

Basics

Value: 28682 → 28683 → 28684

Parity: odd

Prime: No

Previous Prime: 28669

Next Prime: 28687

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 3187

Divisors: 1, 3, 9, 3187, 9561, 28683

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000001011

Octal: 70013

Duodecimal: 14723

Hexadecimal: 700b

Square: 822714489

Square Root: 169.36056211526932

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

Numbers k such that σ(k) = ψ(k) + π(k) + ω(k)⁶. A392909

a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2) and d(n) = (n-th number that is 1 or is not a Fibonacci number). A23488

a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2) and d(n) = (n-th non-Lucas number). A23494

The sum of the numbers that are inside the contour of an n-story Christmas tree drawn at the top of the numerical pyramid containing the positive integers in natural order. A358994

a(n) = b(n) + d(n), where b(n) = ( (n+1)st Fibonacci number) and d(n) = (n-th number that is 1, 2, or 3, or is not a Lucas number). A23499

Number of partitions of n satisfying cn(0,5) <= cn(2,5) + cn(3,5). A39840

Number of irreducible polynomials (over the rationals) of form a·x²+b·x+c, 1 <= a,b,c <= n. A79671

Pseudo Galois numbers for d=21. A28683

Smallest number such that there are exactly n numbers between a(n) and a(n+1) with n divisors. A79835