How to Generates 10 digit Random Numbers in C#?

using System;
using System.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            var str = GetTenDigitRandomNumbers();
        }

        public static string GetTenDigitRandomNumbers()
        {
            Random generator = new Random();
            return generator.Next(0, 1000000).ToString("D10");
        }
    }  
}