Il numero romano MDXL nel sistema decimale vale: 1540.
MDXL in latino si scrive mille quingenti quadraginta,
mentre in italiano millecinquecentoquaranta.
MDXXI, MDXXII, MDXXIII, MDXXIV, MDXXV, MDXXVI, MDXXVII, MDXXVIII, MDXXIX, MDXXX, MDXXXI, MDXXXII, MDXXXIII, MDXXXIV, MDXXXV, MDXXXVI, MDXXXVII, MDXXXVIII, MDXXXIX, MDXLI, MDXLII, MDXLIII, MDXLIV, MDXLV, MDXLVI, MDXLVII, MDXLVIII, MDXLIX, MDL, MDLI, MDLII, MDLIII, MDLIV, MDLV, MDLVI, MDLVII, MDLVIII, MDLIX