1.
2210(10) = 10110(2)
2210(10) = 26(8)
2210(10) = 16(16)
50010(10) = 1111101002(2)
50010(10) = 764(8)
50010(10)=1F4(16)
12,520(10)= 1100.10000101000111101011100001010001111010111000010100(2)
12,520(10)=14.41217270243656050753412172702436560507534121727024(8)
12,520(10)=C.851EB851EB851EB851EB851EB851EB851EB851EB851EB851EB(16)
2.
1100101112(2) = 40710(10)
1100101112(2) = 19716(16)
3.
DA916(16) = 349710(10)