using System;

using System.Linq;

​

namespace RFIDBytes

{

    class Program

    {

        static void Main(string[] args)

        {

            // Convert Part number to Byte array

            var partNumber = (ulong)20034502;

            var byteArray = BitConverter.GetBytes(partNumber);

            Console.WriteLine($"Byte Array = {string.Join(',',byteArray.Select(b => (int)b))}");

            Console.WriteLine($"Hex = {BitConverter.ToString(byteArray).Replace("-", string.Empty)}");

        }

    }

}