2.
10011101 in binary can be written as:
1*2^7 + 0*2^6 + 0*2^5 + 1*2^4 + 1*2^3 + 1*2^2 +0*2^1 + 1*2^0
i.e. (1*2^6 + 0*2^5 + 0*2^4 + 1*2^3 + 1*2^2 + 1*2^1 +0)2^1 + 1
On further simplification,
i.e. (((((((1)*2^1 + 0)*2^1 + 0)*2^1 + 1)*2^1 + 1)*2^1 + 1)*2^1 +0)*2^1 + 1
i.e. (((((((1)*2 + 0)*2 + 0)*2 + 1)*2 + 1)*2 + 1)*2 +0)*2 + 1
i.e. 157 in decimal
3.
14032 in base 6 can be written as:
1*6^4 + 4*6^3 + 0*6^2 + 3*6^1 + 2*6^0
i.e. (1*6^3 + 4*6^2 + 0*6^1 + 3)*6^1 + 2
i.e. ((((1)*6^1 + 4)*6^1 + 0)*6^1 + 3)*6^1 + 2
i.e. ((((1)*6 + 4)*6 + 0)*6 + 3)*6 + 2
i.e. 2180 in decimal
4.
Long Division:
Format is 2 |Dividend | Remainder
2|347|1
2|173|1
2|86 |0
2|43 |1
2|21 |1
2|10 |0
2|5 |1
2|2 |0
2|1 |1
Write the remainders from bottom to top: 101011011
347 is 101011011 in binary.
5.
101011011 can be written as 0001 0101 1011
0001 0101 1011 can be written as 15B in hex (0001 is 1 in hex, 0101 is 5, and 1011 is B)
6.
Long Division:
Format is 5 |Dividend | Remainder
5|347|2
5|69 |4
5|13 |3
5|2 |2
Write the remainders from bottom to top: 2342
347 is 2342 in base 5.
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