DRAFT
Observed
In integer numbers, decimal digits with value `0` take less storage than decimal digits with other values
In integer numbers, all decimal digits take the same amount of storage
Numbers are stored in binary two’s complement representation. An int
uses 32 bits of storage, and, when using two’s complement notation, these 32 bits can represent numbers between -2^31 (-2147483648) … +2^31-1 (2147483647).
The numbers are not represented in BCD (binary-coded-decimal) representation, where each decimal digit would take up exactly 4 binary bits.
The numbers also are not encoded in some compressed form (e.g., that digits of value 0
would take less space than digits of other values).