How powerful is Illari's ultimate? Recalc

so i want to make a quick recalc to this reddit post about illari ultimate because the stats got changed so let's begin

https://preview.redd.it/2ehmfo31uboh1.png?width=472&format=png&auto=webp&s=f5591ce2d5a4fc45d1198f0f56be1c41a54c1a78

Currently radius is 0.45m so ((3.78e+26)0.62)(0.45/696,340,000) = 2.5241979e+17 Joules of Energy =36.1926megatons (City level)