Il numero romano MCXC nel sistema decimale vale: 1190.
MCXC in latino si scrive mille centum nonaginta,
mentre in italiano millecentonovanta.
MCLXXI, MCLXXII, MCLXXIII, MCLXXIV, MCLXXV, MCLXXVI, MCLXXVII, MCLXXVIII, MCLXXIX, MCLXXX, MCLXXXI, MCLXXXII, MCLXXXIII, MCLXXXIV, MCLXXXV, MCLXXXVI, MCLXXXVII, MCLXXXVIII, MCLXXXIX, MCXCI, MCXCII, MCXCIII, MCXCIV, MCXCV, MCXCVI, MCXCVII, MCXCVIII, MCXCIX, MCC, MCCI, MCCII, MCCIII, MCCIV, MCCV, MCCVI, MCCVII, MCCVIII, MCCIX