173123

Appears in sequences

• Least non-balanced x (i.e., not in A020492) such that sigma(p(n),x)/phi(x) is an integer, where p(n) = n-th prime.at n=38A078540
• The point to which the powers of n merge on an 8-digit calculator.at n=15A216070
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=10A316213