Welcome to the Lounge

public enum ShortScale : long
{
    Zero = 0 , One = 1 , Two = 2 , Three = 3 , Four = 4 , Five = 5 , Six = 6 , Seven = 7 , Eight = 8  
    , Nine = 9 , Ten = 10 , Eleven = 11 , Twelve = 12 , Thirteen = 13 , Fourteen = 14 , Fifteen = 15  
    , Sixteen = 16 , Seventeen = 17 , Eighteen = 18 , Nineteen = 19 
            
    , [PIEBALD.Types.NumNuts.HyphenatedAttribute] Twenty   = 20  
...            
    , [PIEBALD.Types.NumNuts.CountedAttribute] Hundred     = 100                   
...  
}

public enum Roman
{
    Nulla = 0 
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] I  = 1     
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] IV = 4    
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] V  = 5     
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] IX = 9    
    , [PIEBALD.Types.NumNuts.RepeatedAttribute] X  = 10    
...
}

public sealed class TestClass
{
    public static readonly System.Numerics.BigInteger Zero   = 0 ;
    public static readonly System.Numerics.BigInteger One    = 1 ;
...
    [PIEBALD.Types.NumNuts.HyphenatedAttribute]
    public static readonly System.Numerics.BigInteger Twenty  = 20 ;
...
    [PIEBALD.Types.NumNuts.CountedAttribute]
    public static readonly System.Numerics.BigInteger Hundred     = 100 ;
...
    [PIEBALD.Types.NumNuts.CountedAttribute]
    public static readonly System.Numerics.BigInteger Decillion   = Thousand * Nonillion ;
...
}