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 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 Pell number? NO 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

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