Il numero romano MDXXX nel sistema decimale vale: 1530.
MDXXX in latino si scrive mille quingenti triginta,
mentre in italiano millecinquecentotrenta.
MDXI, MDXII, MDXIII, MDXIV, MDXV, MDXVI, MDXVII, MDXVIII, MDXIX, MDXX, MDXXI, MDXXII, MDXXIII, MDXXIV, MDXXV, MDXXVI, MDXXVII, MDXXVIII, MDXXIX, MDXXXI, MDXXXII, MDXXXIII, MDXXXIV, MDXXXV, MDXXXVI, MDXXXVII, MDXXXVIII, MDXXXIX, MDXL, MDXLI, MDXLII, MDXLIII, MDXLIV, MDXLV, MDXLVI, MDXLVII, MDXLVIII, MDXLIX