2=0010
A=1010
B=1011
2AB = 0010 1010 1011
2AB(16)=1010101011(2)
或
=2 * 16² + 10 * 16 + 11
=2*256+160+11
=683
=512+128+32+8+2+1
=2^9+2^7+2^5+2^3+2^1+2^0
=1010101011(2)
2=0010
A=1010
B=1011
2AB = 0010 1010 1011
2AB(16)=1010101011(2)
或
=2 * 16² + 10 * 16 + 11
=2*256+160+11
=683
=512+128+32+8+2+1
=2^9+2^7+2^5+2^3+2^1+2^0
=1010101011(2)