862780

Appears in sequences

• Trajectory of 1 under map n->49n+1 if n odd, n->n/2 if n even.at n=20A033980
• Numbers n with the property that it is possible to write the base 2 expansion of n as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have (sigma(a)-a)*(sigma(b)-b) = sigma(n).at n=10A259832