2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
What is the sum of the digits of the number 2^1000?
Stephan van Hulst wrote:Yep, I just computed the value and printed the substring. Personally I think that's as elegant as it gets.
Matthew Brown wrote:I didn't bother in this case