|{0,10:X}|{1,10}|{2:X}|{3}|

   
  

public class MainClass {
    public static void Main() {
        int i = 250662;
        string s = string.Format("|{0,10:X}|{1,10}|{2:X}|{3}|", i, i, i, i);
    }
}