By "1.3 times bigger" do you mean 1.3 times linearly (radius, diameter, circumference) quadratically (surface area, cross sectional area), or cubically (volume, mass(assuming the same density)). The "bigger" also suggests you might mean adding 1.3 times the Earth (making the result 2.3 times Earth in whatever quantity) It's safest to just stick with "times" by itself.

As waldronate said, you can't tile a sphere entirely with hexagons. You need exactly 12 pentagons to close it up. If you want the shapes reasonably regular, then a pentagon will have an area of about 5/6 that of a hexagon. You will also be restricted by having to use discrete cells which means you have only a fairly coarse level of control over the number of cells in the grid.

Working it out you get this:

Geodesic tiling of a sphere of radius $r$ with $h$ hexagons between pentagons - MathB.in