Number 20 in British English words is twenty.
Number consists of 2 digits, two-digit.

Number 20 in American English words is twenty, in German words is zwanzig, in French words is vingt, in Spanish words is veinte, in Italian words is venti, in Dutch words is twintig, in Danish words is tyve.
If you want to write in words the number 20, it is necessary to use 6 characters.

Number 20 in binary code can be written 10100.

Number 20 in octal code can be written 24.

Number 20 in hexadecimal code can be written 14.

Number 20 in Roman numerals is XX.

Unix timestamp 20 converted to human readable date and time is Thursday January 1, 1970, 3:00 AM.

Decimal IP address 20 converted to dotted-decimal format is 0.0.0.20.

The square root of 20 is 4.4721359549996.
Number 20 multiplied by 2 equals 40.
Divided by 2 equals 10.
The sum of all digits equals 2.
Number 20 raised to the power of 2 is 400.
Number 20 raised to the power of 3 is 8000.

The cosine of number 20 is 0.40808206181339.
The sine of number 20 is 0.91294525072763.
The tangent of number 20 is 2.2371609442247.
The radian equivalent of number 20 is 0.34906585039887.
The equivalent of number 20 in degrees is 1145.9155902616.
The base-10 logarithm of number 20 is 1.301029995664.

This number is even number (an integer that is evenly divisible by 2).
Number 20 is not a prime number.