2. Multiply each bit by its corresponding power of 2 and add all the terms up.
110 0011 1000 0001 1001 0001 0101 1000 1000 0001 1000 0111 0110(2) =
(1 × 250 + 1 × 249 + 0 × 248 + 0 × 247 + 0 × 246 + 1 × 245 + 1 × 244 + 1 × 243 + 0 × 242 + 0 × 241 + 0 × 240 + 0 × 239 + 0 × 238 + 0 × 237 + 1 × 236 + 1 × 235 + 0 × 234 + 0 × 233 + 1 × 232 + 0 × 231 + 0 × 230 + 0 × 229 + 1 × 228 + 0 × 227 + 1 × 226 + 0 × 225 + 1 × 224 + 1 × 223 + 0 × 222 + 0 × 221 + 0 × 220 + 1 × 219 + 0 × 218 + 0 × 217 + 0 × 216 + 0 × 215 + 0 × 214 + 0 × 213 + 1 × 212 + 1 × 211 + 0 × 210 + 0 × 29 + 0 × 28 + 0 × 27 + 1 × 26 + 1 × 25 + 1 × 24 + 0 × 23 + 1 × 22 + 1 × 21 + 0 × 20)(10) =
(1 125 899 906 842 624 + 562 949 953 421 312 + 0 + 0 + 0 + 35 184 372 088 832 + 17 592 186 044 416 + 8 796 093 022 208 + 0 + 0 + 0 + 0 + 0 + 0 + 68 719 476 736 + 34 359 738 368 + 0 + 0 + 4 294 967 296 + 0 + 0 + 0 + 268 435 456 + 0 + 67 108 864 + 0 + 16 777 216 + 8 388 608 + 0 + 0 + 0 + 524 288 + 0 + 0 + 0 + 0 + 0 + 0 + 4 096 + 2 048 + 0 + 0 + 0 + 0 + 64 + 32 + 16 + 0 + 4 + 2 + 0)(10) =
(1 125 899 906 842 624 + 562 949 953 421 312 + 35 184 372 088 832 + 17 592 186 044 416 + 8 796 093 022 208 + 68 719 476 736 + 34 359 738 368 + 4 294 967 296 + 268 435 456 + 67 108 864 + 16 777 216 + 8 388 608 + 524 288 + 4 096 + 2 048 + 64 + 32 + 16 + 4 + 2)(10) =
1 750 530 246 842 486(10)
The number 110 0011 1000 0001 1001 0001 0101 1000 1000 0001 1000 0111 0110(2) converted from an unsigned binary (in base 2) and written as a positive integer (with no sign) in decimal system (in base ten):
110 0011 1000 0001 1001 0001 0101 1000 1000 0001 1000 0111 0110(2) = 1 750 530 246 842 486(10)
Spaces were used to group digits: for binary, by 4, for decimal, by 3.