Integer to Signed Binary: Number 10 011 100 036 Converted and Written as a Signed Binary. Base Ten Decimal System Conversion

Integer number 10 011 100 036(10) written as a signed binary number

How to convert the base ten signed integer number 10 011 100 036 to base two:

  • 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.

  • To convert a base ten signed number (written as an integer in decimal system) to base two, written as a signed binary, follow the steps below.

  • Divide the number repeatedly by 2: keep track of each remainder.
  • Stop when you get a quotient that is equal to zero.
  • Construct the base 2 representation of the positive number: take all the remainders starting from the bottom of the list constructed above.
  • Determine the signed binary number bit length.
  • Get the binary computer representation: if needed, add extra 0s in front (to the left) of the base 2 number, up to the required length and change the first bit (the leftmost), from 0 to 1, if the number is negative.
  • Below you can see the conversion process to a signed binary and the related calculations.

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;
  • 10 011 100 036 ÷ 2 = 5 005 550 018 + 0;
  • 5 005 550 018 ÷ 2 = 2 502 775 009 + 0;
  • 2 502 775 009 ÷ 2 = 1 251 387 504 + 1;
  • 1 251 387 504 ÷ 2 = 625 693 752 + 0;
  • 625 693 752 ÷ 2 = 312 846 876 + 0;
  • 312 846 876 ÷ 2 = 156 423 438 + 0;
  • 156 423 438 ÷ 2 = 78 211 719 + 0;
  • 78 211 719 ÷ 2 = 39 105 859 + 1;
  • 39 105 859 ÷ 2 = 19 552 929 + 1;
  • 19 552 929 ÷ 2 = 9 776 464 + 1;
  • 9 776 464 ÷ 2 = 4 888 232 + 0;
  • 4 888 232 ÷ 2 = 2 444 116 + 0;
  • 2 444 116 ÷ 2 = 1 222 058 + 0;
  • 1 222 058 ÷ 2 = 611 029 + 0;
  • 611 029 ÷ 2 = 305 514 + 1;
  • 305 514 ÷ 2 = 152 757 + 0;
  • 152 757 ÷ 2 = 76 378 + 1;
  • 76 378 ÷ 2 = 38 189 + 0;
  • 38 189 ÷ 2 = 19 094 + 1;
  • 19 094 ÷ 2 = 9 547 + 0;
  • 9 547 ÷ 2 = 4 773 + 1;
  • 4 773 ÷ 2 = 2 386 + 1;
  • 2 386 ÷ 2 = 1 193 + 0;
  • 1 193 ÷ 2 = 596 + 1;
  • 596 ÷ 2 = 298 + 0;
  • 298 ÷ 2 = 149 + 0;
  • 149 ÷ 2 = 74 + 1;
  • 74 ÷ 2 = 37 + 0;
  • 37 ÷ 2 = 18 + 1;
  • 18 ÷ 2 = 9 + 0;
  • 9 ÷ 2 = 4 + 1;
  • 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.

10 011 100 036(10) = 10 0101 0100 1011 0101 0100 0011 1000 0100(2)


3. Determine the signed binary number bit length:

  • The base 2 number's actual length, in bits: 34.

  • 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, 34,

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 10 011 100 036(10), a signed integer number (with sign),
converted from decimal system (from base 10)
and written as a signed binary (in base 2):

10 011 100 036(10) = 0000 0000 0000 0000 0000 0000 0000 0010 0101 0100 1011 0101 0100 0011 1000 0100

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

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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