1 million digits of PI 1 billion digits of PI Mandelbrot set Explorer

Number 20

Properties of the number 20

Prime Factorization	2² x 5
Divisors	1, 2, 4, 5, 10, 20
Count of divisors	6
Sum of divisors	42
Previous integer	19
Next integer	21
Is prime?	NO
Previous prime	19
Next prime	23
20^th prime number	↻ calculating, please wait
Is a Fibonacci number?	NO
20^th Fibonacci number	6765
Zeckendorf representation	13 + 5 + 2
Is a Pell number?	NO
Is a regular number?	YES
Is a perfect number?	NO
Is a perfect square number?	NO
Is a perfect cube number?	NO
Is power of 2?	NO
Is power of 3?	NO
Factorial 20!	2432902008176640000
Square 20²	400
Square root √20	4.4721359549996
Cube 20³	8000
Cubic root ∛20	2.7144176165949
Natural logarithm	2.995732273554
Decimal logarithm	1.301029995664

Trigonometry of the number 20

20 modulo 360°	20°
Sine of 20 radians	0.91294525072763
Cosine of 20 radians	0.40808206181339
Tangent of 20 radians	2.2371609442247
Sine of 20 degrees	0.34202014332567
Cosine of 20 degrees	0.93969262078591
Tangent of 20 degrees	0.3639702342662
20 degrees in radiants	0.34906585039887
20 radiants in degrees	1145.9155902616

Base conversion of the number 20

Binary	10100
Octal	24
Duodecimal	18
Hexadecimal	14

« Previous Next »

Recommended Books

Looking for good books to read? Take a look at these books if you want to know more about the theory of numbers

To guide today's students through the key milestones and developments in number theory

A comprehensive introduction to number theory, with complete proofs, worked examples, and exercises.

Several of its challenges are so easy to state that everyone can understand them, and yet no-one has ever been able to resolve them.

In addition to covering the basics, it offers an outstanding introduction to partitions, multiplicativity-divisibility, and more.