988877

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 68.at n=25A031656
• Numbers k such that k and k^2 use only the digits 1, 2, 7, 8 and 9.at n=24A137018
• Least prime, p, such that p mod (sum of the digits of p) = n.at n=44A138792
• Number of (n+2) X 4 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order.at n=24A204375
• Prime numbers with monotonically decreasing digits, differing by at most 1.at n=31A378775
• Prime numbersat n=77699