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Properties of the Number 28385

Twenty-Eight Thousand Three Hundred Eighty-Five

Basics

Value: 28384 → 28385 → 28386

Parity: odd

Prime: No

Previous Prime: 28351

Next Prime: 28387

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 7 × 811

Divisors: 1, 5, 7, 35, 811, 4055, 5677, 28385

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111011100001

Octal: 67341

Duodecimal: 14515

Hexadecimal: 6ee1

Square: 805708225

Square Root: 168.47848527334284

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

Coordination sequence for (2,5,infinity) tiling of hyperbolic plane. A265068
a(n) = binomial(n+5,6) + binomial(n+3,3) + binomial(n+2,3) + binomial(n-1,1). A105450
Number of 5-cycles in the n-polygon diagonal intersection graph. A300553
Number of partitions of n into 8 parts such that every i-th smallest part (counted with multiplicity) is different from i. A244244
Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n-1), where a(0) = 3, a(1) = 4, b(0) = 1, b(1) = 2, and (a(n)) and (b(n)) are increasing complementary sequences. A296265
Hamming weight distribution of code obtained by lifting Golay code of length 24 to Z/4Z. A105547
Numbers k such that the smoothly undulating palindromic number (35·10k - 53)/99 is a prime. A62218
A129065 with v=x instead of v=1: recursive polynomial coefficient triangle. A136452
Number of ways to place 6 points on a triangular grid of side n so that no two of them are adjacent. A282998
Sequence starting with a(1) = 2 and always extended with the product "n-th digit·n-th term". When the product is = 0, we don't extend the sequence with 0 but with the smallest integer not yet present. A337109