Il numero romano CDXCIII nel sistema decimale vale: 493.
CDXCIII in latino si scrive quadringenti nonaginta tres,
mentre in italiano quattrocentonovantatré.
CDLXXIV, CDLXXV, CDLXXVI, CDLXXVII, CDLXXVIII, CDLXXIX, CDLXXX, CDLXXXI, CDLXXXII, CDLXXXIII, CDLXXXIV, CDLXXXV, CDLXXXVI, CDLXXXVII, CDLXXXVIII, CDLXXXIX, CDXC, CDXCI, CDXCII, CDXCIV, CDXCV, CDXCVI, CDXCVII, CDXCVIII, CDXCIX, D, DI, DII, DIII, DIV, DV, DVI, DVII, DVIII, DIX, DX, DXI, DXII