1284 x 40000
1284 x 40000 = 51360000
Example of 1284 x 40000 pixels banner dimensions.
1234 x 40050 1244 x 40040 1254 x 40030 1264 x 40020 1274 x 40010
1284 x 39950 1284 x 39960 1284 x 39970 1284 x 39980 1284 x 39990
1284 x 40050 1284 x 40040 1284 x 40030 1284 x 40020 1284 x 40010