Problem 16 - What is the sum of the digits of the number 2^1000?

2¹⁵ = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.

What is the sum of the digits of the number 2¹⁰⁰⁰?

python

Problem 19 - How many Sundays fell on the first of the month during the twentieth century? (0)	2010.02.20
Problem 18 - Find the maximum sum travelling from the top of the triangle to the base. (0)	2010.02.20
Problem 15 - Starting in the top left corner in a 20 by 20 grid, how many routes are there to the bottom right corner? (0)	2010.02.18
Problem 14 - Find the longest sequence using a starting number under one million. (0)	2010.02.18
Problem 13 - Find the first ten digits of the sum of one-hundred 50-digit numbers. (0)	2010.02.17

toysmars CSE