№2
1) 128 = 2⁷ =10000000
2) 256 = 2⁸ = 100000000
3) 512 = 2⁹ = 1000000000
4) 1024 = 2¹° = 10000000000
№3
1) 1000001 = 2⁶+2⁰ = 64+1 = 65
2) 10000001 = 2⁷+2⁰ = 128+1 = 129
3) 100000001 = 2⁸+2⁰ = 256+1 = 257
4) 1000000001 = 2⁹+2⁰ = 512+1 = 513

№4
1) 101 = 2²+2⁰ = 4+1 = 5
2) 11101 = 2⁰+2²+2³+2⁴ = 1+4+8+16 = 29
3) 101010 = 2¹+2³+2⁵ = 2+8+32 = 42
4) 100011 = 2°+2¹+2⁵= 1+2+32 = 35
5) 10110111011 = 2°+2¹+2³+2⁴+2⁵+2⁷+2⁸+2¹° = 1+2+8+16+32+128+256+1024 = 1467

№5
1) 2 = 2¹ = 10
2) 7 = 4+2+1 = 2²+2¹+2° = 111
3) 17 = 16+1 = 2⁴+2°= 10001
4) 68 = 64+4 = 2⁶+2² = 1000100
5) 315 = 256+32+16+8+2+1 = 2⁸+2⁵+2⁴+2³+2¹+2° = 100111011
6) 756 = 512+128+64+32+16+8+4+1 = 2⁹+2⁷+2⁶+2⁵+2⁴+2³+2²+2° = 1011111101
7) 2047 = 1024+512+256+128+64+32+16+8+4+2+1 = 2¹°+2⁹+2⁸+2⁷+2⁶+2⁵+2⁴+2³+2²+2¹+2°= 11111111111