Firstly there is no such thing as the Roman alphabet, they spoke Latin.
'N' was written in upper-case letters as all Latin is.
It is: 0 = N
Nothing. 'n' is not a Roman numeral.
N (or nulla) is a very rare way to write a zero. The standard Roman numbering system does not include a zero or null value. Even if it did, the structure you are proposing is incorrect.
In Roman numerals, it means N M C.
To write twenty in Roman numerals, you simply write the letter X.
It is: 0 = N
Nothing. 'n' is not a Roman numeral.
N (or nulla) is a very rare way to write a zero. The standard Roman numbering system does not include a zero or null value. Even if it did, the structure you are proposing is incorrect.
In Roman numerals, it means N M C.
To write twenty in Roman numerals, you simply write the letter X.
No. There is no roman numeral for infiity.
You write 1533 in roman numerals like this: MDXXXIII
You write 151 in Roman numerals as CLI
In Chinese, the letters D, L, N do not exist as individual symbols. They would be written using the corresponding Pinyin sounds, such as "dí" for D, "lí" for L, and "nǚ" for N.
The Romans did not have a 0 in the numerals but it is recognised that 'N' could be used from the Latin word nulla meaning "none"
N is not a Roman numeral.
There is no N in roman numerals, but M means thousand.