Write a program to Convert a Decimal number to a Binary number

Following is a program to Convert a Decimal number to a Binary number :

#include<iostream>
#include<cmath>
using namespace std;

int decimaltobinary(int n){
   // Divison Method
   int binaryno = 0;
   int i = 0;
   while(n>0){
      int bit = n % 2;
      binaryno += bit*pow(10,i);
      // cout << binaryno << endl;
      n = n/2;
      i++;
   } 
   return binaryno;
}

int main(){
   int n;
   cout << "Enter the number for its binary representation: ";
   cin >> n;
   int binary = decimaltobinary(n);
   cout << binary << endl;
   }