spanconch

Similar reasons to e, but slightly less interesting in my opinion. We've known abt it for really long time so kind of grandfathered in.

Simple, elegant, and graceful. 2 is concept known to everyone, used by everyone; the most simple things to the most complex, 2 is there. Also related to binary so like, def up there for me.

Honestly, this is just peak mathematics. It ties together so many fundamental functions and concepts of math, its genuinely fascinating. Def my all time favorite number.