50
XXI = 21
MM = 2000
S as a Roman numeral is equivalent to a 1/2 or 0.5
XLVII is the equivalent of -10+57 = 47
In roman numberals it means MCMLXXI. In Arabic numerals it means 1971.
In Roman numberals, 168 is CLXVIII. C= 100, L=50, X=10, VIII=8.
here you go.In roman`s numberals its looks like this X-10 and XI-11
40032
1607
1736
CLXXXIX
MCMLXXXXII