base 30 is a positional numeral system with thirty as its base. It uses 30 different digits for representing numbers. The digits for base 30 could be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, and t.

base 33 is a positional numeral system with thirty-three as its base. It uses 33 different digits for representing numbers. The digits for base 33 could be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, and w.