Properties of the Number 28320

Twenty-Eight Thousand Three Hundred Twenty

Basics

Value: 28319 → 28320 → 28321

Parity: even

Prime: No

Previous Prime: 28319

Next Prime: 28349

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁵ × 3 × 5 × 59

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111010100000

Octal: 67240

Duodecimal: 14480

Hexadecimal: 6ea0

Square: 802022400

Square Root: 168.28547174370104

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

Strongly refactorable numbers: numbers n such that if n is divisible by d, it is divisible by the number of divisors of d. A141586

Square array, read by antidiagonals, where row n equals the coordination sequence of B_n lattice, for n >= 0. A108998

Nonnegative k such that 7·k² + 7·k + 1 is a square. A105040

Number of compositions (ordered partitions) of n into square pyramidal numbers (A000330). A322340

Coordination sequence for root lattice B₆. A22148

Occurrences of most frequently occurring number in 1-to-n 5-dimensional multiplication table. A57344

6 times octagonal numbers: a(n) = 6·n*(3·n-2). A153796

Number of triple-crossings of diagonals in the regular 2n-gon. A260417

Triangle read by rows. The Faulhaber numbers. F(0, k) = 1 and otherwise F(n, k) = (n + 1)!*(-1)^k+1*∑_{j=0..floor((k-1)/2)} C(2·k-2·j, k+1)*C(2·n+1, 2·j+1) * Bernoulli(2·n-2·j) / (k - j). A354042

Coordination sequence for diamond structure D^+_6. (Edges defined by l₁ norm = 1.) A35879