Properties of the Number 28285

Twenty-Eight Thousand Two Hundred Eighty-Five

Basics

Value: 28284 → 28285 → 28286

Parity: odd

Prime: No

Previous Prime: 28283

Next Prime: 28289

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 5657

Divisors: 1, 5, 5657, 28285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110111001111101

Octal: 67175

Duodecimal: 14451

Hexadecimal: 6e7d

Square: 800041225

Square Root: 168.1814496310458

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

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 329", based on the 5-celled von Neumann neighborhood. A281174

a(n) = ceiling(sqrt(8·10ⁿ)). A35075

Square root of A030693. A30694

Number of partitions of n with equal nonzero number of parts congruent to each of 2 and 3 (mod 5). A35569

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation. A147050

Smallest number k such that k² begins with n³. A197722

Elements to right of central elements in 4-Pascal triangle A028275 that are not 1. A28285