Properties of the Number 28286

Twenty-Eight Thousand Two Hundred Eighty-Six

Basics

Value: 28285 → 28286 → 28287

Parity: even

Prime: No

Previous Prime: 28283

Next Prime: 28289

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 14143

Divisors: 1, 2, 14143, 28286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111001111110

Octal: 67176

Duodecimal: 14452

Hexadecimal: 6e7e

Square: 800097796

Square Root: 168.1844225842572

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

Positive integers m such that π(m³) = π(j³) + π(k³) for some 0 < j <= k < m. A262409

Number of rhombi on an n X n grid (or geoboard). A189418

Triangle read by rows: T(n,k) is the number of simple connected graphs on n unlabeled nodes with k cycles and no node a member of more than one cycle, 0 <= k <= floor(n/3). A381467

Maximal troughs in decimal expansions of π: positions of troughs equal to 8. A105276

Even elements to right of central elements in 4-Pascal triangle A028275. A28286