20 = XX
01= i 20= xx 1973= mcmlxxiii
here you go.In roman`s numberals its looks like this X-10 and XI-11
MCMLXXXXII
40032
June XX MCMILIIImproved Answer:-In today's notation of Roman numerals it is: VI-XX-MCMXLII
01= i 20= xx 1973= mcmlxxiii
here you go.In roman`s numberals its looks like this X-10 and XI-11
CLXXXIX
MCMLXXXXII
1736
40032
1607
June XX MCMILIIImproved Answer:-In today's notation of Roman numerals it is: VI-XX-MCMXLII
2000 = MM
11
2101 = MMCI
50