In base 3, Rapaire's birthdate, "0211", is the rquivalent of "9" in base 10.

That assumes one expresses dates as month/date. In cultures or subcultures which express dates as date/month, Rapaire's birthday is "1102" which, in base 3, is the equivalent of "25" in base 10.

I hope Rapaire had a happy 9 or 25, whichever he chose to have.

Unless he chose to have his birthday in binary, in which case I hope he had a happy 11010011 or 1101001110001001110.