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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?#include <stdio.h>int main(){ char st[500] = {0}; int sum = 0;...

The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.Find the sum of all the primes below two million.#include <stdio.h>#define NUM 2000000int main(){ int i, j; unsigned long ...