Convert 20 from decimal to binary
(base 2) notation:
Power Test
Raise our base of 2 to a power
Start at 0 and increasing by 1 until it is >= 20
20 = 1
21 = 2
22 = 4
23 = 8
24 = 16
25 = 32 <--- Stop: This is greater than 20
Since 32 is greater than 20, we use 1 power less as our starting point which equals 4
Build binary notation
Work backwards from a power of 4
We start with a total sum of 0:
24 = 16
The highest coefficient less than 1 we can multiply this by to stay under 20 is 1
Multiplying this coefficient by our original value, we get: 1 * 16 = 16
Add our new value to our running total, we get:
0 + 16 = 16
This is <= 20, so we assign our outside coefficient of 1 for this digit.
Our new sum becomes 16
Our binary notation is now equal to 1
23 = 8
The highest coefficient less than 1 we can multiply this by to stay under 20 is 1
Multiplying this coefficient by our original value, we get: 1 * 8 = 8
Add our new value to our running total, we get:
16 + 8 = 24
This is > 20, so we assign a 0 for this digit.
Our total sum remains the same at 16
Our binary notation is now equal to 10
22 = 4
The highest coefficient less than 1 we can multiply this by to stay under 20 is 1
Multiplying this coefficient by our original value, we get: 1 * 4 = 4
Add our new value to our running total, we get:
16 + 4 = 20
This = 20, so we assign our outside coefficient of 1 for this digit.
Our new sum becomes 20
Our binary notation is now equal to 101
21 = 2
The highest coefficient less than 1 we can multiply this by to stay under 20 is 1
Multiplying this coefficient by our original value, we get: 1 * 2 = 2
Add our new value to our running total, we get:
20 + 2 = 22
This is > 20, so we assign a 0 for this digit.
Our total sum remains the same at 20
Our binary notation is now equal to 1010
20 = 1
The highest coefficient less than 1 we can multiply this by to stay under 20 is 1
Multiplying this coefficient by our original value, we get: 1 * 1 = 1
Add our new value to our running total, we get:
20 + 1 = 21
This is > 20, so we assign a 0 for this digit.
Our total sum remains the same at 20
Our binary notation is now equal to 10100
Final Answer
We are done. 20 converted from decimal to binary notation equals 101002.
What is the Answer?
We are done. 20 converted from decimal to binary notation equals 101002.
How does the Base Change Conversions Calculator work?
Free Base Change Conversions Calculator - Converts a positive integer to Binary-Octal-Hexadecimal Notation or Binary-Octal-Hexadecimal Notation to a positive integer. Also converts any positive integer in base 10 to another positive integer base (Change Base Rule or Base Change Rule or Base Conversion)
This calculator has 3 inputs.
What 3 formulas are used for the Base Change Conversions Calculator?
Binary = Base 2Octal = Base 8
Hexadecimal = Base 16
For more math formulas, check out our Formula Dossier
What 6 concepts are covered in the Base Change Conversions Calculator?
basebase change conversionsbinaryBase 2 for numbersconversiona number used to change one set of units to another, by multiplying or dividinghexadecimalBase 16 number systemoctalbase 8 number systemExample calculations for the Base Change Conversions Calculator
Tags:
Add This Calculator To Your Website
ncG1vNJzZmivp6x7rq3ToZqepJWXv6rA2GeaqKVfqLKivsKhZamgoHS%2Bfn6PXmlprJ9af3GuyKeYq7E%3D