Sum of the digits of 2 1729 {2}^{1729}

Computer Science Level 3

What is the sum of the digits of the number 2 1729 {2}^{1729} ?

For example, the sum of digits of 2 15 = 32768 {2}^{15} = 32768 is 3 + 2 + 7 + 6 + 8 = 26 3 + 2 + 7 + 6 + 8 = 26 .

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The answer is 2387.

Rishabh Deep Singh by Rishabh Deep Singh , 23, India

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2 solutions

Kunal Gupta
Jul 6, 2017

Python one liner:

print sum(map(int,list(str(2**1729))))

1 Helpful 0 Interesting 0 Brilliant 0 Confused

I wish i will learn Python one day.

Rishabh Deep Singh - 3 years, 11 months ago 
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import java.math.BigInteger;

public class main {
    public static void main( String[] args) {
        int result = 0;
        String val = BigInteger.valueOf(2).pow(1729).toString();
        for(char a : val.toCharArray())
            result = result + Character.getNumericValue(a);
        System.out.println("val == " + result);
     }
}

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