Properties of the Number 28292

Twenty-Eight Thousand Two Hundred Ninety-Two

Basics

Value: 28291 → 28292 → 28293

Parity: even

Prime: No

Previous Prime: 28289

Next Prime: 28297

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 11 × 643

Divisors: 1, 2, 4, 11, 22, 44, 643, 1286, 2572, 7073

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111010000100

Octal: 67204

Duodecimal: 14458

Hexadecimal: 6e84

Square: 800437264

Square Root: 168.20225920004762

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

Partial sums of A001891. A53808

A(x) satisfies: Fibonacci(x)/x = A(x)/A(x²). A173285

Numbers k > 0 such that (10^k+2 + 666)*10^k + 1 is prime. A156166

a(n) = A000045(n+6) - (n² + 4·n + 8). A163250

The first Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.1). A292344

Triangle read by rows: T(n,k) is the number of nondecreasing Dyck paths of semilength n and having k double rises at an odd level (n >= 1, k >= 0). A121529

Number of nonnegative integer arrays of length n+2·3-2 with new values introduced in order 0 upwards and every value appearing only in runs of at least 3. A211695

Number of 4-step one or two space at a time bishop's tours on an n X n board summed over all starting positions. A187048

Sum of the prime numbers in, but not on the border of, an n X n square array whose elements are the numbers from 1..n², listed in increasing order by rows. A344847

T(n,k)=Number of n-step one or two space at a time bishop's tours on a kXk board summed over all starting positions. A187046