I think it relies on https://www.mathsisfun.com/money/compound-interest.html
I first tried this solution, but couldn't get my head around on how to add aug to the formula.
Pretty clever solution, though.

k is the integer to find. Basically, sum(digit ** p successives powers) = n * k,
so k = sum / n. You can figure the rest out.

Hey, I'm having some problems in this kata with JavaScript.

So basically for some tests no matter what value I store in 'k' it returns a weird unrelated value.

I tested this but logging the value of k before returning it , and the value of k is clearly not the value returned.

Please Help.

Pretty cool !
But i really do not understand the math behind this...
Plz explain.