What are the required steps to convert base 10 integer
number 600 520 203 910 000 212 to signed binary code (in base 2)?
- A signed integer, written in base ten, or a decimal system number, is a number written using the digits 0 through 9 and the sign, which can be positive (+) or negative (-). If positive, the sign is usually not written. A number written in base two, or binary, is a number written using only the digits 0 and 1.
1. Divide the number repeatedly by 2:
Keep track of each remainder.
Stop when you get a quotient that is equal to zero.
- division = quotient + remainder;
- 600 520 203 910 000 212 ÷ 2 = 300 260 101 955 000 106 + 0;
- 300 260 101 955 000 106 ÷ 2 = 150 130 050 977 500 053 + 0;
- 150 130 050 977 500 053 ÷ 2 = 75 065 025 488 750 026 + 1;
- 75 065 025 488 750 026 ÷ 2 = 37 532 512 744 375 013 + 0;
- 37 532 512 744 375 013 ÷ 2 = 18 766 256 372 187 506 + 1;
- 18 766 256 372 187 506 ÷ 2 = 9 383 128 186 093 753 + 0;
- 9 383 128 186 093 753 ÷ 2 = 4 691 564 093 046 876 + 1;
- 4 691 564 093 046 876 ÷ 2 = 2 345 782 046 523 438 + 0;
- 2 345 782 046 523 438 ÷ 2 = 1 172 891 023 261 719 + 0;
- 1 172 891 023 261 719 ÷ 2 = 586 445 511 630 859 + 1;
- 586 445 511 630 859 ÷ 2 = 293 222 755 815 429 + 1;
- 293 222 755 815 429 ÷ 2 = 146 611 377 907 714 + 1;
- 146 611 377 907 714 ÷ 2 = 73 305 688 953 857 + 0;
- 73 305 688 953 857 ÷ 2 = 36 652 844 476 928 + 1;
- 36 652 844 476 928 ÷ 2 = 18 326 422 238 464 + 0;
- 18 326 422 238 464 ÷ 2 = 9 163 211 119 232 + 0;
- 9 163 211 119 232 ÷ 2 = 4 581 605 559 616 + 0;
- 4 581 605 559 616 ÷ 2 = 2 290 802 779 808 + 0;
- 2 290 802 779 808 ÷ 2 = 1 145 401 389 904 + 0;
- 1 145 401 389 904 ÷ 2 = 572 700 694 952 + 0;
- 572 700 694 952 ÷ 2 = 286 350 347 476 + 0;
- 286 350 347 476 ÷ 2 = 143 175 173 738 + 0;
- 143 175 173 738 ÷ 2 = 71 587 586 869 + 0;
- 71 587 586 869 ÷ 2 = 35 793 793 434 + 1;
- 35 793 793 434 ÷ 2 = 17 896 896 717 + 0;
- 17 896 896 717 ÷ 2 = 8 948 448 358 + 1;
- 8 948 448 358 ÷ 2 = 4 474 224 179 + 0;
- 4 474 224 179 ÷ 2 = 2 237 112 089 + 1;
- 2 237 112 089 ÷ 2 = 1 118 556 044 + 1;
- 1 118 556 044 ÷ 2 = 559 278 022 + 0;
- 559 278 022 ÷ 2 = 279 639 011 + 0;
- 279 639 011 ÷ 2 = 139 819 505 + 1;
- 139 819 505 ÷ 2 = 69 909 752 + 1;
- 69 909 752 ÷ 2 = 34 954 876 + 0;
- 34 954 876 ÷ 2 = 17 477 438 + 0;
- 17 477 438 ÷ 2 = 8 738 719 + 0;
- 8 738 719 ÷ 2 = 4 369 359 + 1;
- 4 369 359 ÷ 2 = 2 184 679 + 1;
- 2 184 679 ÷ 2 = 1 092 339 + 1;
- 1 092 339 ÷ 2 = 546 169 + 1;
- 546 169 ÷ 2 = 273 084 + 1;
- 273 084 ÷ 2 = 136 542 + 0;
- 136 542 ÷ 2 = 68 271 + 0;
- 68 271 ÷ 2 = 34 135 + 1;
- 34 135 ÷ 2 = 17 067 + 1;
- 17 067 ÷ 2 = 8 533 + 1;
- 8 533 ÷ 2 = 4 266 + 1;
- 4 266 ÷ 2 = 2 133 + 0;
- 2 133 ÷ 2 = 1 066 + 1;
- 1 066 ÷ 2 = 533 + 0;
- 533 ÷ 2 = 266 + 1;
- 266 ÷ 2 = 133 + 0;
- 133 ÷ 2 = 66 + 1;
- 66 ÷ 2 = 33 + 0;
- 33 ÷ 2 = 16 + 1;
- 16 ÷ 2 = 8 + 0;
- 8 ÷ 2 = 4 + 0;
- 4 ÷ 2 = 2 + 0;
- 2 ÷ 2 = 1 + 0;
- 1 ÷ 2 = 0 + 1;
2. Construct the base 2 representation of the positive number:
Take all the remainders starting from the bottom of the list constructed above.
600 520 203 910 000 212(10) = 1000 0101 0101 0111 1001 1111 0001 1001 1010 1000 0000 0010 1110 0101 0100(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 60.
- A signed binary's bit length must be equal to a power of 2, as of:
- 21 = 2; 22 = 4; 23 = 8; 24 = 16; 25 = 32; 26 = 64; ...
- The first bit (the leftmost) is reserved for the sign:
- 0 = positive integer number, 1 = negative integer number
The least number that is:
1) a power of 2
2) and is larger than the actual length, 60,
3) so that the first bit (leftmost) could be zero
(we deal with a positive number at this moment)
=== is: 64.
4. Get the positive binary computer representation on 64 bits (8 Bytes):
If needed, add extra 0s in front (to the left) of the base 2 number, up to the required length, 64:
600 520 203 910 000 212(10) Base 10 integer number converted and written as a signed binary code (in base 2):
600 520 203 910 000 212(10) = 0000 1000 0101 0101 0111 1001 1111 0001 1001 1010 1000 0000 0010 1110 0101 0100
Spaces were used to group digits: for binary, by 4, for decimal, by 3.