>>11596797The chart does not refer to number bases themselves, but rather the properties of several small natural numbers. Choosing a number base is a culturally arbitrary thing, and the OP is suggesting that choice of a different base would have certain advantages since certain numbers have richer properties than others.
The NUMBER 70 (not the base) is called "weird" because it satisfies two simple number-theoretic properties. Something about (non?-)abundance and another property, I forget the definition but you can easily look it up and check it for yourself. The electronic music group Boards of Canada released a track called "the smallest Weird Number", a reference to the name of their music label imprint, Music70.
