Properties of the Number 28216

Twenty-Eight Thousand Two Hundred Sixteen

Basics

Value: 28215 → 28216 → 28217

Parity: even

Prime: No

Previous Prime: 28211

Next Prime: 28219

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 3527

Divisors: 1, 2, 4, 8, 3527, 7054, 14108, 28216

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111000111000

Octal: 67070

Duodecimal: 143B4

Hexadecimal: 6e38

Square: 796142656

Square Root: 167.97618878876852

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 A299257. A299263

T(n,k)=Number of white-square subarrays of (n+2)X(k+2) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero. A230940

a(n) = 64·n² - 8. A158487

Number of white-square subarrays of (n+2)X(5+2) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero. A230938

Number of (n+2) X (5+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and in every diagonal and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order. A252692

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 486", based on the 5-celled von Neumann neighborhood. A272508

a(n) = p(n+1)² + 2·p(n) + 1; p(n) is the n-th prime number and n >= 1. A155819

Number of white-square subarrays of (n+2) X (n+2) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero. A230936

Coefficients of the series reversion of the series Sum(x^k for k in A008578). A245240

Expansion of 1/((1-6x)(1-9x)(1-10x)(1-11x)). A28216