How many right handed first baseman asre there in the majors?

Answer 1

Counting active players who have played at least 50% of their games at 1B this season, here is a handedness breakdown:

Bats right, throws right: 15

Bats left, throws right: 10

Bats both, throws right: 3

Bats left, throws left: 12

Bats right, throws left: 0

Bats both, throws left: 1

Total right-handed throwers: 28

Total left-handed throwers: 13

Total right-handed batters: 15

Total left-handed batters: 22

Total switch hitters: 4