428250

Appears in sequences

• Numbers x whose 10's complements y have the same sum of divisors of x, with x <> y.at n=26A300796
• Number of regions formed in a hexagon by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on the edge on the opposite side of the hexagon.at n=19A367662