Il numero romano MDCCXLII nel sistema decimale vale: 1742.
MDCCXLII in latino si scrive mille septingenti quadraginta duo,
mentre in italiano millesettecentoquarantadue.
MDCCXXIII, MDCCXXIV, MDCCXXV, MDCCXXVI, MDCCXXVII, MDCCXXVIII, MDCCXXIX, MDCCXXX, MDCCXXXI, MDCCXXXII, MDCCXXXIII, MDCCXXXIV, MDCCXXXV, MDCCXXXVI, MDCCXXXVII, MDCCXXXVIII, MDCCXXXIX, MDCCXL, MDCCXLI, MDCCXLIII, MDCCXLIV, MDCCXLV, MDCCXLVI, MDCCXLVII, MDCCXLVIII, MDCCXLIX, MDCCL, MDCCLI, MDCCLII, MDCCLIII, MDCCLIV, MDCCLV, MDCCLVI, MDCCLVII, MDCCLVIII, MDCCLIX, MDCCLX, MDCCLXI