Signed: Integer ↗ Binary: 111 001 110 998 Convert the Integer Number to a Signed Binary. Converting and Writing the Base Ten Decimal System Signed Integer as Binary Code (Written in Base Two)

Signed integer number 111 001 110 998(10)
converted and written as a signed binary (base 2) = ?

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;
  • 111 001 110 998 ÷ 2 = 55 500 555 499 + 0;
  • 55 500 555 499 ÷ 2 = 27 750 277 749 + 1;
  • 27 750 277 749 ÷ 2 = 13 875 138 874 + 1;
  • 13 875 138 874 ÷ 2 = 6 937 569 437 + 0;
  • 6 937 569 437 ÷ 2 = 3 468 784 718 + 1;
  • 3 468 784 718 ÷ 2 = 1 734 392 359 + 0;
  • 1 734 392 359 ÷ 2 = 867 196 179 + 1;
  • 867 196 179 ÷ 2 = 433 598 089 + 1;
  • 433 598 089 ÷ 2 = 216 799 044 + 1;
  • 216 799 044 ÷ 2 = 108 399 522 + 0;
  • 108 399 522 ÷ 2 = 54 199 761 + 0;
  • 54 199 761 ÷ 2 = 27 099 880 + 1;
  • 27 099 880 ÷ 2 = 13 549 940 + 0;
  • 13 549 940 ÷ 2 = 6 774 970 + 0;
  • 6 774 970 ÷ 2 = 3 387 485 + 0;
  • 3 387 485 ÷ 2 = 1 693 742 + 1;
  • 1 693 742 ÷ 2 = 846 871 + 0;
  • 846 871 ÷ 2 = 423 435 + 1;
  • 423 435 ÷ 2 = 211 717 + 1;
  • 211 717 ÷ 2 = 105 858 + 1;
  • 105 858 ÷ 2 = 52 929 + 0;
  • 52 929 ÷ 2 = 26 464 + 1;
  • 26 464 ÷ 2 = 13 232 + 0;
  • 13 232 ÷ 2 = 6 616 + 0;
  • 6 616 ÷ 2 = 3 308 + 0;
  • 3 308 ÷ 2 = 1 654 + 0;
  • 1 654 ÷ 2 = 827 + 0;
  • 827 ÷ 2 = 413 + 1;
  • 413 ÷ 2 = 206 + 1;
  • 206 ÷ 2 = 103 + 0;
  • 103 ÷ 2 = 51 + 1;
  • 51 ÷ 2 = 25 + 1;
  • 25 ÷ 2 = 12 + 1;
  • 12 ÷ 2 = 6 + 0;
  • 6 ÷ 2 = 3 + 0;
  • 3 ÷ 2 = 1 + 1;
  • 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.


111 001 110 998(10) = 1 1001 1101 1000 0010 1110 1000 1001 1101 0110(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 111 001 110 998(10), a signed integer number (with sign),
converted from decimal system (from base 10)
and written as a signed binary (in base 2):

111 001 110 998(10) = 0000 0000 0000 0000 0000 0000 0001 1001 1101 1000 0010 1110 1000 1001 1101 0110

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

The latest signed integer numbers (that are written in decimal system, in base ten) converted and written as signed binary numbers

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