Presumably you mean 6,534,111 and not three separate numbers?
If so then it is: ((DC))(DXXXIII)CXI
Because:
((DC)) = 10,000*600 = 6,000,000
(DXXXIIII) = 1,000*534 = 534,000
CXI = 111
VI is 6 in Roman numerals.
IIIVIXII = 17 III = 3 VI = 6 XII = 12
VI is the number 6 in Roman numerals. 6VI = 6
6-5-2008 in Roman numerals are VI-V-MMVIII
15th June, 2012 would be XV. VI. MMXII in Roman numerals.
VI is 6 in Roman numerals.
IIIVIXII = 17 III = 3 VI = 6 XII = 12
VI is the number 6 in Roman numerals. 6VI = 6
6-5-2008 in Roman numerals are VI-V-MMVIII
6 in roman numerals is VI.
May 6, 2011 in Roman numerals is V VI MMXI
15th June, 2012 would be XV. VI. MMXII in Roman numerals.
The Roman numeral for 6 is "VI".
6 = VI
6
Vl
VI