Il numero romano CDXLV nel sistema decimale vale: 445.
CDXLV in latino si scrive quadringenti quadraginta quinque,
mentre in italiano quattrocentoquarantacinque.
CDXXVI, CDXXVII, CDXXVIII, CDXXIX, CDXXX, CDXXXI, CDXXXII, CDXXXIII, CDXXXIV, CDXXXV, CDXXXVI, CDXXXVII, CDXXXVIII, CDXXXIX, CDXL, CDXLI, CDXLII, CDXLIII, CDXLIV, CDXLVI, CDXLVII, CDXLVIII, CDXLIX, CDL, CDLI, CDLII, CDLIII, CDLIV, CDLV, CDLVI, CDLVII, CDLVIII, CDLIX, CDLX, CDLXI, CDLXII, CDLXIII, CDLXIV