Il numero romano CCCLXXXIII nel sistema decimale vale: 383.
CCCLXXXIII in latino si scrive trecenti octoginta tres,
mentre in italiano trecentottantatré.
CCCLXIV, CCCLXV, CCCLXVI, CCCLXVII, CCCLXVIII, CCCLXIX, CCCLXX, CCCLXXI, CCCLXXII, CCCLXXIII, CCCLXXIV, CCCLXXV, CCCLXXVI, CCCLXXVII, CCCLXXVIII, CCCLXXIX, CCCLXXX, CCCLXXXI, CCCLXXXII, CCCLXXXIV, CCCLXXXV, CCCLXXXVI, CCCLXXXVII, CCCLXXXVIII, CCCLXXXIX, CCCXC, CCCXCI, CCCXCII, CCCXCIII, CCCXCIV, CCCXCV, CCCXCVI, CCCXCVII, CCCXCVIII, CCCXCIX, CD, CDI, CDII