It is: DCCXXX = 730
That is not a proper Roman Numeral
It is: XVI = 16
li or LI = 51
It is the equivalent of 313 = CCCXIII
In today's notation they represent 390
20
1993
That is not a proper Roman Numeral
In roman numrals it means 2011
It is: XVI = 16
li or LI = 51
It is the equivalent of 313 = CCCXIII
In today's notation they represent 390
730 = DCCXXX
D
LV
MCXVII