Another day, another dollar for Logan Paul ... but more importantly, another birthday and he's celebrating his BIG DIRTY 30 today! With a new reality show, and runnin' around town with his hot fiancée, Nina Agdal, what more could this hot zaddy wish for?!

Paul's PRIME sports drinks and energy drinks aren't his only pristine assets ... Check out the abdominals on this hunk ... ABS-olutely shredded!!!

If you've seen him in the gym, you know Logan gets after it ... but perhaps what really gets him all those double taps on socials is his shirtless uniform