Magic Number
From T729 Balanced Ternary Computer
Magic Number may mean other things in other fields but in the scope of this project the Magic Number refers to a number that best serves as a unit size. Humans like to assign names to units of 10, 100, 1000, etc due to our decimal number system. Binary has a very close "Magic Number" of 1024 which is 2 to the power of 10. Ternary does not align very well with decimal, so the nearest value 729 is chosen; 3 to the power of 6. So the T729 has a Magic Number of 729.
Ternary data storage units are powers of 729. See Data Storage.