In today's terms XIX represents 19
19
In today's terms it is 19
In todays modern notation of Roman numerals they represent the Hindu-Arabic numerals of 200 and 19 respectively.
The I before the X means 10 minus 1. This converect to 19 in Arabic numerals.
The Roman numeral XIX the same as 19 in Arabic numerals.
Hindu Arabic numerals are the ones we use. 39 is already in Hindu-Arabic numerals.
19
The Roman numerals LXVII=67 in Hindu Arabic numerals.
The Roman numerals of CCX are the equivalent of 210 in Hindu-Arabic numerals.
The Roman numerals of DCCC are the equivalent of 800 in Hindu-Arabic numerals
The Roman numerals of XX are the equivalent of 20 in Hindu-Arabic numerals
437 is already in Hindu-Arabic numerals