If    contain each digit exactly once, it is called strictly pandigital.

For example, 1023456789 is the smallest (strictly) pandigital number in base 10, while    is pandigital in base 4 but not strictly pandigital.

Many authors use simply the term pandigital to mean both kind of numbers, so I will do the same, since usually the right meaning will be clear from the contest.

The first strictly pandigital numbers, in any possible base    are 2, 11, 15, 19, 21, 75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 694, 698, 714, 722, 738, 742, 894 more terms

Pictorial representation of remainders (mod 2, 3, ...,11) frequency. For a table of values and more details click here

A graph displaying how many pandigitals are multiples of the primes p from 2 to 71. In black the ideal line 1/p.