Number 28

Properties of the number 28

Prime Factorization 22 x 7
Divisors 1, 2, 4, 7, 14, 28
Count of divisors 6
Sum of divisors 56
Previous integer 27
Next integer 29
Is prime? NO
Prime number position -
Previous prime 23
Next prime 29
28th prime number
calculating, please wait
Is a Fibonacci number? NO
28th Fibonacci number 317811
Zeckendorf representation 21 + 5 + 2
Is a regular number? NO
Is a perfect number? YES
Is a perfect square number? NO
Is a perfect cube number? NO
Is power of 2? NO
Is power of 3? NO
Factorial 28! 3.0488834461171E+29
Square 282 784
Square root √28 5.2915026221292
Cube 283 21952
Cubic root ∛28 3.0365889718757
Natural logarithm 3.3322045101752
Decimal logarithm 1.4471580313422

Trigonometry of the number 28

28 modulo 360° 28°
Sine of 28 radians 0.27090578830787
Cosine of 28 radians -0.96260586631357
Tangent of 28 radians -0.28142960456427
Sine of 28 degrees 0.46947156278589
Cosine of 28 degrees 0.88294759285893
Tangent of 28 degrees 0.53170943166148
28 degrees in radiants 0.48869219055841
28 radiants in degrees 1604.2818263663

Base conversion of the number 28

Binary 11100
Octal 34
Duodecimal 24
Hexadecimal 1c
« Previous Next »