Properties of the Number 28442

Twenty-Eight Thousand Four Hundred Forty-Two

Basics

Value: 28441 → 28442 → 28443

Parity: even

Prime: No

Previous Prime: 28439

Next Prime: 28447

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 14221

Divisors: 1, 2, 14221, 28442

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111100011010

Octal: 67432

Duodecimal: 14562

Hexadecimal: 6f1a

Square: 808947364

Square Root: 168.6475615003075

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

Row sums of a triangle related to the Jacobsthal polynomials. A108742

The (1,4)-entry in the matrix Mⁿ, where M is the 4 X 4 matrix {{0, -1, -1, 1}, {1, -1, 0, 0}, {0, 1, 1, 0}, {0, 0, 1, 1 }}. A122789

Minimum value unattainable as the sum of 2 attained values of a·b*c with a,b,c 0..n integers. A225264

The number of partitions of n which represent Chomp positions with Sprague-Grundy value 7. A284780

Numbers k such that Mertens's function M(k) (A002321) is zero. A28442

A self-describing sequence mostly made of 1's and 0's emerging when written in English words (see the Comments section for an explanation). A306559