Problem 42085. Sum of digits of powers of 2

Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example:

 Input: n = 7
 2^n = 128
 Output: b = 1 + 2 + 8 = 11

Solve

Last Solution submitted on Jan 11, 2020

Jan Orwat on 29 Apr 2015

Hello Mayuri, please fix the test and add more cases.

goc3 on 30 Sep 2016

This problem has been improved and now has a working test suite.

digit sum