Monday, January 6, 2014

Power digit sum

If you are a best programmer, can you able to find the answer for the following question?

Q.  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?

I found the answer using Scala programming.  

BigInt(2).pow(1000).toString().map(_.asDigit).sum

Can you able to write code to find the answer using your preferred programming language except Scala?  

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