234

Number
$234$ (two hundred and twenty-eight) is:
 * $2 \times 3^2 \times 13$


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


 * The $15$th of the $17$ positive integers for which the value of the Euler $\phi$ function is $72$:
 * $73, 91, 95, 111, 117, 135, 146, 148, 152, 182, 190, 216, 222, 228, 234, 252, 270$


 * The $3$rd element of the smallest triple of consecutive positive integers each of which is the sum of two squares:
 * $232 = 14^2 + 6^2$, $233 = 13^2 + 8^2$, $234 = 15^2 + 3^2$

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