Properties of the Number 28395

Twenty-Eight Thousand Three Hundred Ninety-Five

Basics

Value: 28394 → 28395 → 28396

Parity: odd

Prime: No

Previous Prime: 28393

Next Prime: 28403

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 631

Divisors: 1, 3, 5, 9, 15, 45, 631, 1893, 3155, 5679

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111011101011

Octal: 67353

Duodecimal: 14523

Hexadecimal: 6eeb

Square: 806276025

Square Root: 168.5081600398034

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

Triangle T(n, k) = Numbers of ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle of any orientation. Triangle read by rows. A240439

Let S denote the palindromes in the language {0,1,2}*; a(n) = number of words of length n in the language SS. A7056

Number of odd numbers k such that difference between halving and tripling steps in Collatz (3x+1) trajectory of k is n. A222753

The arithmetic mean of the n-th and (n+1)-st cubes, rounded down. A147656

Iterate the map in A006368 starting at 14. A28395