C sharp program for Armstrong Number

using System;

namespace Prg2ConsoleApplication9
{
    class ArmstrongNumber
    {
        static void Main(string[] args)
        {
            number num = new number();
            num.getdata();
        }
    }
    class number
    {
        public void getdata()
        {
            int no,r,sum=0,n=0;
            Console.WriteLine("Enter number\n");
            no = Int32.Parse(Console.ReadLine());
            n = no;
            while (n > 0)
            {
                r = n % 10;
                n = n / 10;
                sum += r*r*r;
            }

            if (sum == no)
            {
                Console.WriteLine("{0} is a Amstrong number" , no);
            }
            else
            {
                Console.WriteLine("{0} is not a Amstrong number", no);
            }
            Console.ReadLine();
            
        }
    }
}

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