projecteuler---->problem=16----Power digit sum

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?

翻译：

2¹⁵ = 32768的各位数之和为3 + 2 + 7 + 6 + 8 = 26。

那么2¹⁰⁰⁰的各位数之和为……？

import mathm=pow(2,1000)s=0while m>0:    s+= m%10    m /= 10print s