4927941domain: NAppears in sequencesKaprekar numbers: numbers k such that k = q + r and k^2 = q*10^m + r, for some m >= 1, q >= 0 and 0 <= r < 10^m. Here q and r must both have the same number of digits.at n=33A0459137-Kaprekar numbers.at n=3A333133