Il numero romano MMMCDLXXVIII nel sistema decimale vale: 3478.
MMMCDLXXVIII in latino si scrive tria milia quadringenti septuaginta octo,
mentre in italiano tremilaquattrocentosettantotto.
MMMCDLIX, MMMCDLX, MMMCDLXI, MMMCDLXII, MMMCDLXIII, MMMCDLXIV, MMMCDLXV, MMMCDLXVI, MMMCDLXVII, MMMCDLXVIII, MMMCDLXIX, MMMCDLXX, MMMCDLXXI, MMMCDLXXII, MMMCDLXXIII, MMMCDLXXIV, MMMCDLXXV, MMMCDLXXVI, MMMCDLXXVII, MMMCDLXXIX, MMMCDLXXX, MMMCDLXXXI, MMMCDLXXXII, MMMCDLXXXIII, MMMCDLXXXIV, MMMCDLXXXV, MMMCDLXXXVI, MMMCDLXXXVII, MMMCDLXXXVIII, MMMCDLXXXIX, MMMCDXC, MMMCDXCI, MMMCDXCII, MMMCDXCIII, MMMCDXCIV, MMMCDXCV, MMMCDXCVI, MMMCDXCVII