Il numero romano MMDXLII nel sistema decimale vale: 2542.
MMDXLII in latino si scrive duo milia quingenti quadraginta duo,
mentre in italiano duemilacinquecentoquarantadue.
MMDXXIII, MMDXXIV, MMDXXV, MMDXXVI, MMDXXVII, MMDXXVIII, MMDXXIX, MMDXXX, MMDXXXI, MMDXXXII, MMDXXXIII, MMDXXXIV, MMDXXXV, MMDXXXVI, MMDXXXVII, MMDXXXVIII, MMDXXXIX, MMDXL, MMDXLI, MMDXLIII, MMDXLIV, MMDXLV, MMDXLVI, MMDXLVII, MMDXLVIII, MMDXLIX, MMDL, MMDLI, MMDLII, MMDLIII, MMDLIV, MMDLV, MMDLVI, MMDLVII, MMDLVIII, MMDLIX, MMDLX, MMDLXI