196344
domain: N
Appears in sequences
- Numbers k having at least two complementary pairs of divisors (q, p) and (p', q') such that k = p*q = p'*q' where the decimal digits of p' are the 9's complement of the decimal digits of p and the decimal digits of q' are the 9's complement of the decimal digits of q.at n=35A226587
- Numbers k that divide sigma(k) + sigma(k-1).at n=22A227306