16 = XVI
LXXXIX.
1988 = MCMLXXXVIII
You cannot spell Lillian with Roman Numerals because there are no numerals that could be used to make an "A". The Roman Numerals are: I, V, X, L, C, D, M.
In today's notation of Roman numerals: VI-XVI-MCMXCV
You don't, because "hello kitty" is two words, while numerals are NUMBERS.
Rome is not traditionally spelled out using Roman numerals. Roman numerals are used to represent numbers in ancient Rome, not for spelling out words.
X = 10. V = 5 and I = 1. XVI = 16.
In today's terms 09-16-1993 expressed in Roman numerals is IX-XVI-MCMXCIII. However, during the Roman era the Romans themselves would have probably wrote out these numbers as VIIII-XVI-MDCCCCLXXXXIII.
Roman (in katakana) = ロマン
In today's modern notation: XVI-XI-MCMXXXVIII
Some style sheets suggest spelling out numbers less than 20. If there are several numbers (e.g. 4 of 14, 25 out of 99) in the sentence, they can all be written as as numbers rather than words.
spell HELLO, you will reverse the numbers so that they read 0.7734.