Il numero romano MDCCXXXIV nel sistema decimale vale: 1734.
MDCCXXXIV in latino si scrive mille septingenti triginta quattuor,
mentre in italiano millesettecentotrentaquattro.
MDCCXV, MDCCXVI, MDCCXVII, MDCCXVIII, MDCCXIX, MDCCXX, MDCCXXI, MDCCXXII, MDCCXXIII, MDCCXXIV, MDCCXXV, MDCCXXVI, MDCCXXVII, MDCCXXVIII, MDCCXXIX, MDCCXXX, MDCCXXXI, MDCCXXXII, MDCCXXXIII, MDCCXXXV, MDCCXXXVI, MDCCXXXVII, MDCCXXXVIII, MDCCXXXIX, MDCCXL, MDCCXLI, MDCCXLII, MDCCXLIII, MDCCXLIV, MDCCXLV, MDCCXLVI, MDCCXLVII, MDCCXLVIII, MDCCXLIX, MDCCL, MDCCLI, MDCCLII, MDCCLIII