Properties of the Number 28918

Twenty-Eight Thousand Nine Hundred Eighteen

Basics

Value: 28917 → 28918 → 28919

Parity: even

Prime: No

Previous Prime: 28909

Next Prime: 28921

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 19 × 761

Divisors: 1, 2, 19, 38, 761, 1522, 14459, 28918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000011110110

Octal: 70366

Duodecimal: 1489A

Hexadecimal: 70f6

Square: 836250724

Square Root: 170.05293293560098

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

Expansion of (1/x) * Series_Reversion( x*(1+x+x³)/(1+x)³ ). A366117

The Wiener index of the zig-zag polyhex nanotube TUHC₆[2n,2] defined pictorially in Fig. 1 of the Eliasi et al. reference. A227703

Number of minimal total dominating sets in the n-barbell graph. A302650

Number of free linear midpoint-free polycubes of size n, identifying rotations and reflections. A368032

(3n+1)!/(4*(3n-1)). A28918