(function binaryConverter2(num) {

    var numString = num.toString(),

        total = 0,

        i = numString.length-1,

        j = 1;

    console.log(numString);//"1011010110100101000"

​

​

    while(i >= 0) {

        total += (numString[i] *j);

​

        j = j*2;

        i --;

        console.log(total);

    }

​

    return total;

}(1011010110100101001));