585000

Appears in sequences

• Numbers k such that the sums of the digits of k, k^2 and k^3 coincide.at n=21A111434
• Numbers n such that 10^11 + n^2 is a square.at n=8A180974
• Number of -n..n arrays x(0..4) of 5 elements with zero sum and no two or three adjacent elements summing to zero.at n=15A200432
• Number of (n+2) X 4 binary arrays avoiding patterns 001 and 101 in rows and columns.at n=22A202196
• Integer areas A of integer-sided cyclic quadrilaterals such that the length of the circumradius is a perfect square.at n=25A233315
• 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) = n.at n=8A259831