Project Euler 16

• 問題

Problem 16：Power digit sum
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?

• 解答例

strNum = str(2 ** 1000)

sum = 0
for i in strNum:
    sum += int(i)

print(sum)