Properties of the Number 28045

Twenty-Eight Thousand Forty-Five

Basics

Value: 28044 → 28045 → 28046

Parity: odd

Prime: No

Previous Prime: 28031

Next Prime: 28051

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 71 × 79

Divisors: 1, 5, 71, 79, 355, 395, 5609, 28045

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110110001101

Octal: 66615

Duodecimal: 14291

Hexadecimal: 6d8d

Square: 786522025

Square Root: 167.46641454333462

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

Number of length 4 arrays x(i), i=1..4 with x(i) in i..i+n and no value appearing more than 2 times. A250353

Number of n X 2 binary arrays indicating whether each 2 X 2 subblock of a larger binary array has lexicographically increasing rows and columns, for some larger (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order. A227085

The Wiener index of the graph obtained by applying Mycielski's construction to a benzenoid consisting of a linear chain of n hexagons. A228597

Squarefree terms of A276655. A276756

Hodge structure on relative homology of some varieties related to cluster algebras of type A. A196019

Expansion of 1/((1-3x)(1-4x)(1-8x)(1-11x)). A28045