202

Number
$202$ (two hundred and two) is:


 * $2 \times 101$


 * The $29$th nontotient:
 * $\nexists m \in \Z_{>0}: \phi \left({m}\right) = 202$
 * where $\phi \left({m}\right)$ denotes the Euler $\phi$ function


 * The $18$th noncototient after $10, 26, 34, 50, 52, 58, 86, 100, 116, 122, 130, 134, 146, 154, 170, 172, 186$:
 * $\nexists m \in \Z_{>0}: m - \phi \left({m}\right) = 202$
 * where $\phi \left({m}\right)$ denotes the Euler $\phi$ function


 * The $2$nd positive integer after $200$ that cannot be made into a prime number by changing just $1$ digit