Properties of the Number 6428

Six Thousand Four Hundred Twenty-Eight

Basics

Value: 6427 → 6428 → 6429

Parity: even

Prime: No

Previous Prime: 6427

Next Prime: 6449

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 1607

Divisors: 1, 2, 4, 1607, 3214, 6428

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100011100

Octal: 14434

Duodecimal: 3878

Hexadecimal: 191c

Square: 41319184

Square Root: 80.17480901130978

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 meaningful differential operations of the n-th order on the space R¹⁰. A90995

Maximal number of regions into which 4-space can be divided by n hyperspheres. A59173

Numbers n such that n!8+1 is prime (for n!8 see A114800). A204661

a(n) is the action of recursively applying 'Rule 30' elementary cellular automata on the binary representation of n if the cells may only expand into the significant bit, a(0) = 1. A74890

Walks of length n on the x-axis using steps {1,0,-1} and visiting no point more than twice. A212587

Terms in a specific cycle of length 29 of the map x->A098189(x). A98192

Number of symmetry classes of 3 X 3 magilatin squares with positive values < n. A173729

Array read by antidiagonals: T(m,n) = number of m-ary words of length n with cyclically adjacent elements differing by 3 or less. A285281

Hexagonal spiral sequence: sequence is written as a hexagonal spiral around a 'dummy' center, each entry is the sum of the row in the previous direction containing the previous entry. A63178

A generalized partition function. A2600