Cast int to long : long « Data Types « C++ Tutorial

1. C++ Tutorial
2. Data Types
3. long

#include<iostream.h>

main()
{
  int n = 123;

  for(int i=n;i<=n+9;i++)
  {
    cout<<i;
    cout<<" "<<long(i)*i<<" "<<long(i)*i*i;
    cout<<endl;
  }
  return 0;
}

123 15129 1860867
124 15376 1906624
125 15625 1953125
126 15876 2000376
127 16129 2048383
128 16384 2097152
129 16641 2146689
130 16900 2197000
131 17161 2248091
132 17424 2299968