If it was simple convertion/cast it would not be a problem.
Here is some sample data.
NameDecimalValueNumericValue
-----------------------------------------------------------------------------
Number2_40x14E201000000000000000000000002001234.12
Number10xCF040000000000000000000000000100123.1
Number50xD929954900000000000000000000050012345.12345
Number40xF24FBC000000000000000000000004001234.1234