228

Number
$228$ (two hundred and twenty-eight) is:
 * $2^2 \times 3 \times 19$


 * The $3$rd element of the $2$nd set of $4$ positive integers which form an arithmetic progression which all have the same Euler $\phi$ value:
 * $\phi \left({216}\right) = \phi \left({222}\right) = \phi \left({228}\right) = \phi \left({234}\right) = 72$