Il numero romano CDLXXIII nel sistema decimale vale: 473.
CDLXXIII in latino si scrive quadringenti septuaginta tres,
mentre in italiano quattrocentosettantatré.
CDLIV, CDLV, CDLVI, CDLVII, CDLVIII, CDLIX, CDLX, CDLXI, CDLXII, CDLXIII, CDLXIV, CDLXV, CDLXVI, CDLXVII, CDLXVIII, CDLXIX, CDLXX, CDLXXI, CDLXXII, CDLXXIV, CDLXXV, CDLXXVI, CDLXXVII, CDLXXVIII, CDLXXIX, CDLXXX, CDLXXXI, CDLXXXII, CDLXXXIII, CDLXXXIV, CDLXXXV, CDLXXXVI, CDLXXXVII, CDLXXXVIII, CDLXXXIX, CDXC, CDXCI, CDXCII