125640

Appears in sequences

• Positive numbers k such that k and 2*k are anagrams in base 7 (written in base 7).at n=19A023068
• Nonprime numbers k such that k | (sigma(k) - Sum_{j=1..m}{sigma(k) mod d_j}), where d_j is one of the m divisors of k.at n=10A282775