Human brains seem to be suited to verbally counting in base ten however. I mean, languages as unconnected as Japanese, Chinese, Russian, Finnish, Hungarian, Italian, German, English, Navajo all count in base ten. There are of course outliers, but those tend to be very small isolated language communities. I think the ease of communication in base ten for humans outweighs any arithmetic improvements. You can always count things in groups of 12 or 60 if you want to be able to easily divide the group, but keep the numbers in base ten.