Il numero romano MMMMCXXIX nel sistema decimale vale: 4129.
MMMMCXXIX in latino si scrive quattuor milia centum viginti novem,
mentre in italiano quattromilacentoventinove.
MMMMCX, MMMMCXI, MMMMCXII, MMMMCXIII, MMMMCXIV, MMMMCXV, MMMMCXVI, MMMMCXVII, MMMMCXVIII, MMMMCXIX, MMMMCXX, MMMMCXXI, MMMMCXXII, MMMMCXXIII, MMMMCXXIV, MMMMCXXV, MMMMCXXVI, MMMMCXXVII, MMMMCXXVIII, MMMMCXXX, MMMMCXXXI, MMMMCXXXII, MMMMCXXXIII, MMMMCXXXIV, MMMMCXXXV, MMMMCXXXVI, MMMMCXXXVII, MMMMCXXXVIII, MMMMCXXXIX, MMMMCXL, MMMMCXLI, MMMMCXLII, MMMMCXLIII, MMMMCXLIV, MMMMCXLV, MMMMCXLVI, MMMMCXLVII, MMMMCXLVIII