16) Problem 16- Project Euler Solution in Java 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 ? Using the BigInteger() class : int sum =0; BigInteger big = new BigInteger("2"); big = big.pow(1000); String result =big.toString(); for(int i=0;i<result.length();i++){ sum+=Character.getNumericValue(result.charAt(i)); } System.out.println("sum : "+sum );