Properties of the Number 28842

Twenty-Eight Thousand Eight Hundred Forty-Two

Basics

Value: 28841 → 28842 → 28843

Parity: even

Prime: No

Previous Prime: 28837

Next Prime: 28843

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 11 × 19 × 23

Divisors: 1, 2, 3, 6, 11, 19, 22, 23, 33, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000010101010

Octal: 70252

Duodecimal: 14836

Hexadecimal: 70aa

Square: 831860964

Square Root: 169.82932608945958

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 triangular regions in regular n-gon with all diagonals drawn. A62361

Number of achiral polyominoes composed of n tetrahedral cells of the hyperbolic regular tiling with Schläfli symbol {3,3,oo}. A371351

Number of closed walks of length n at a base vertex of a truncated tetrahedron (triangular prism). A94554

The fourth left hand column of triangle A167552. A168302

Wiener index of the Moebius ladder M(n). A180857

a(n) = lcm(n,n+1,n+2,n+3,n+4,n+5,n+6)/420. A189144

a(n) = (12·n)!*(2·n)!/((9·n)!*(4·n)!*n!). A295444

Let x(1)x(2)...x(q) the decimal expansion of the numbers k having exactly q distinct prime divisors p(1) < p(2) < ... < p(q). Sequence lists the numbers k such that p(1)/x(1) + p(2)/x(2) + ... + p(q)/x(q) is an integer. A235152

Let x(1)x(2)...x(q) the decimal expansion of the numbers k having exactly q distinct prime divisors p(1) < p(2) < ... < p(q). Sequence lists the numbers k such that p(1)/x(q) + p(2)/x(q-1)+ ... + p(q)/x(1) is an integer. A235153

Composite squarefree integers for which the sum of the squares of their factors is a square. A379780