[XX]
The number 20,000 can be written in Roman numerals as [XX] or as XX with a horizontal bar placed above it (which I cannot write with this keyboard).
The number 20,000 can be represented by the Roman numeral (XX)
In Roman numerals, 60 is written as "LX".
672 = DCLXXII
C
XIV
XVI
XLIV
mcmxcvi
It is XXXII.
MMCV
2003 = MMIII in Roman numerals