//153 = 1^3 + 5^3 + 3^3 = 1+125+27 = 153
//the above line shows the meaning of narcissistic,meaning sum of power of number should be
//equal to that number 153===153
const isNarcissistic = (num) => {
let m = 1, count = 0;
while(num / m > 1){
m *= 10;
count++;
};
let sum = 0, temp = num;
while(temp){
sum += Math.pow(temp % 10, count);
temp = Math.floor(temp / 10);
};
return sum === num;
};