// MaxValue // = 2^32 // = 4,294,967,295 // = Four Billion Two Hundred Ninety Four Million Nine Hundred Sixty Seven Thousand Two Hundred Ninety Five public static string ConvertToWords(this UInt32 value) { var valueInWords = new StringBuilder(); if (value == 0) { valueInWords.Append(_zero); } else { value .ConvertForPeriod(valueInWords, Period.Billion, BillionPeriodBegin) .ConvertForPeriod(valueInWords, Period.Million, MillionPeriodBegin) .ConvertForPeriod(valueInWords, Period.Thousand, ThousandPeriodBegin) .ConvertForPeriod(valueInWords, Period.Hundred, HundredPeriodBegin) .ConvertSubHundred(valueInWords) .ConvertSubTwenty(valueInWords); } return(BuildNumberWord(valueInWords)); }