Integer to Signed Binary: Number 100 111 110 055 Converted and Written as a Signed Binary. Base Ten Decimal System Conversion

Integer number 100 111 110 055(10) written as a signed binary number

1. Divide the number repeatedly by 2:

Keep track of each remainder.

We stop when we get a quotient that is equal to zero.


  • division = quotient + remainder;
  • 100 111 110 055 ÷ 2 = 50 055 555 027 + 1;
  • 50 055 555 027 ÷ 2 = 25 027 777 513 + 1;
  • 25 027 777 513 ÷ 2 = 12 513 888 756 + 1;
  • 12 513 888 756 ÷ 2 = 6 256 944 378 + 0;
  • 6 256 944 378 ÷ 2 = 3 128 472 189 + 0;
  • 3 128 472 189 ÷ 2 = 1 564 236 094 + 1;
  • 1 564 236 094 ÷ 2 = 782 118 047 + 0;
  • 782 118 047 ÷ 2 = 391 059 023 + 1;
  • 391 059 023 ÷ 2 = 195 529 511 + 1;
  • 195 529 511 ÷ 2 = 97 764 755 + 1;
  • 97 764 755 ÷ 2 = 48 882 377 + 1;
  • 48 882 377 ÷ 2 = 24 441 188 + 1;
  • 24 441 188 ÷ 2 = 12 220 594 + 0;
  • 12 220 594 ÷ 2 = 6 110 297 + 0;
  • 6 110 297 ÷ 2 = 3 055 148 + 1;
  • 3 055 148 ÷ 2 = 1 527 574 + 0;
  • 1 527 574 ÷ 2 = 763 787 + 0;
  • 763 787 ÷ 2 = 381 893 + 1;
  • 381 893 ÷ 2 = 190 946 + 1;
  • 190 946 ÷ 2 = 95 473 + 0;
  • 95 473 ÷ 2 = 47 736 + 1;
  • 47 736 ÷ 2 = 23 868 + 0;
  • 23 868 ÷ 2 = 11 934 + 0;
  • 11 934 ÷ 2 = 5 967 + 0;
  • 5 967 ÷ 2 = 2 983 + 1;
  • 2 983 ÷ 2 = 1 491 + 1;
  • 1 491 ÷ 2 = 745 + 1;
  • 745 ÷ 2 = 372 + 1;
  • 372 ÷ 2 = 186 + 0;
  • 186 ÷ 2 = 93 + 0;
  • 93 ÷ 2 = 46 + 1;
  • 46 ÷ 2 = 23 + 0;
  • 23 ÷ 2 = 11 + 1;
  • 11 ÷ 2 = 5 + 1;
  • 5 ÷ 2 = 2 + 1;
  • 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.


100 111 110 055(10) = 1 0111 0100 1111 0001 0110 0100 1111 1010 0111(2)


3. Determine the signed binary number bit length:

The base 2 number's actual length, in bits: 37.

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, 37,

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:


Number 100 111 110 055(10), a signed integer number (with sign),
converted from decimal system (from base 10)
and written as a signed binary (in base 2):

100 111 110 055(10) = 0000 0000 0000 0000 0000 0000 0001 0111 0100 1111 0001 0110 0100 1111 1010 0111

Spaces were used to group digits: for binary, by 4, for decimal, by 3.

» More ops: Integer number 100 111 110 034 converted and written as a signed binary number

» New: All the Calculations Performed by Our Visitors: Integer numbers converted and written as signed binary numbers. Data organized on a Monthly Basis

How to convert signed integers from decimal system to binary code system

Follow the steps below to convert a signed base ten integer number to signed binary:

  • 1. In a signed binary, first bit (the leftmost) is reserved for sign: 0 = positive integer number, 1 = positive integer number. If the number to be converted is negative, start with its positive version.
  • 2. Divide repeatedly by 2 the positive integer number keeping track of each remainder. STOP when we get a quotient that is ZERO.
  • 3. Construct the base 2 representation of the positive number, by taking all the remainders starting from the bottom of the list constructed above. Thus, the last remainder of the divisions becomes the first symbol (the leftmost) of the base two number, while the first remainder becomes the last symbol (the rightmost).
  • 4. Binary numbers represented in computer language have a length of 4, 8, 16, 32, 64, ... bits (power of 2) - if needed, fill in extra '0' bits in front of the base 2 number (to the left), up to the right length; this way the first bit (the leftmost one) is always '0', as for a positive representation.
  • 5. To get the negative reprezentation of the number, simply switch the first bit (the leftmost one), from '0' to '1'.

Example: convert the negative number -63 from decimal system (base ten) to signed binary code system:

  • 1. Start with the positive version of the number: |-63| = 63;
  • 2. Divide repeatedly 63 by 2, keeping track of each remainder, until we get a quotient that is equal to zero:
    • division = quotient + remainder
    • 63 ÷ 2 = 31 + 1
    • 31 ÷ 2 = 15 + 1
    • 15 ÷ 2 = 7 + 1
    • 7 ÷ 2 = 3 + 1
    • 3 ÷ 2 = 1 + 1
    • 1 ÷ 2 = 0 + 1
  • 3. Construct the base 2 representation of the positive number, by taking all the remainders starting from the bottom of the list constructed above:
    63(10) = 11 1111(2)
  • 4. The actual length of base 2 representation number is 6, so the positive binary computer representation length of the signed binary will take in this case 8 bits (the least power of 2 higher than 6) - add extra '0's in front (to the left), up to the required length; this way the first bit (the leftmost one) is to be '0', as for a positive number:
    63(10) = 0011 1111(2)
  • 5. To get the negative integer number representation simply change the first bit (the leftmost), from '0' to '1':
    -63(10) = 1011 1111
  • Number -63(10), signed integer, converted from decimal system (base 10) to signed binary = 1011 1111