# Howdy Integers!

Number Theory Level 4

$\large{n = 10^{m-1}a_m + 10^{m-2}a_{m-1} + \ldots + a_1}$

A positive integer $$n$$ as described above can be written in the decimal notation as $$a_m a_{m-1} \dotsm a_1$$, where $$a_m, a_{m-1}, \ldots, a_1 \in \{0, 1, 2, \ldots, 9 \}$$ and $$a_m \neq 0$$.

Find the SUM of all $$n$$ such that:

$\large{n = (a_m+1) \times (a_{m-1}+1) \times \dotsm \times (a_1 +1)}$

×

Problem Loading...

Note Loading...

Set Loading...