Il numero romano MMMMDCXLII nel sistema decimale vale: 4642.
MMMMDCXLII in latino si scrive quattuor milia sescenti quadraginta duo,
mentre in italiano quattromilaseicentoquarantadue.
MMMMDCXXIII, MMMMDCXXIV, MMMMDCXXV, MMMMDCXXVI, MMMMDCXXVII, MMMMDCXXVIII, MMMMDCXXIX, MMMMDCXXX, MMMMDCXXXI, MMMMDCXXXII, MMMMDCXXXIII, MMMMDCXXXIV, MMMMDCXXXV, MMMMDCXXXVI, MMMMDCXXXVII, MMMMDCXXXVIII, MMMMDCXXXIX, MMMMDCXL, MMMMDCXLI, MMMMDCXLIII, MMMMDCXLIV, MMMMDCXLV, MMMMDCXLVI, MMMMDCXLVII, MMMMDCXLVIII, MMMMDCXLIX, MMMMDCL, MMMMDCLI, MMMMDCLII, MMMMDCLIII, MMMMDCLIV, MMMMDCLV, MMMMDCLVI, MMMMDCLVII, MMMMDCLVIII, MMMMDCLIX, MMMMDCLX, MMMMDCLXI