what is the size of BYTEINT,SMALLINT,INTEGER?

BYTEINT - 1 Bytes - 8 bits -- > -128 to 127
SMALLINT - 2 bytes - 16 bites: ---> -32768 to 32767

INTEGER - 4 BYTES - 32 BITS ---> -2,147,483,648 to 2,147,483,647