Zeros
No, they are not.
Hindu-Arabic numerals
The numerals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0 form the most common system of number notation in today's world. They are known as Arabic numerals, and the system is known as Arabic notation, as it was developed within the Arabic civilization (although zero originally came from India).
the roman numerals are today used forbook chaptersmathclocksetc
12629 is already written in Hindu-Arabic numerals, which is the number system used in most countries in the world today.
It is Good Friday and today's date is April 22 2011 which in Roman numerals is IV-XXII-MMXI
Arabic numerals or Hindu-Arabic numerals are the numerals that we use today which are: 0 1 2 3 4 5 6 7 8 and 9
In today's notation of Roman numerals it is: MCDXCIV
In today's notation of Roman numerals it is: CDXCII
In today's notation of Roman numerals: MMMCCCXCVIII
In today's notation of Roman numerals it is: MDXLII
In today's notation of Roman numerals it is: MCDLIII