Number 15

Properties of the number 15

Prime Factorization 3 x 5
Divisors 1, 3, 5, 15
Count of divisors 4
Sum of divisors 24
Previous integer 14
Next integer 16
Is prime? NO
Previous prime 13
Next prime 17
15th prime number
calculating, please wait
Is a Fibonacci number? NO
15th Fibonacci number 610
Zeckendorf representation 13 + 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 15! 1307674368000
Square 152 225
Square root √15 3.8729833462074
Cube 153 3375
Cubic root ∛15 2.4662120743305
Natural logarithm 2.7080502011022
Decimal logarithm 1.1760912590557

Trigonometry of the number 15

15 modulo 360° 15°
Sine of 15 radians 0.65028784015712
Cosine of 15 radians -0.75968791285882
Tangent of 15 radians -0.85599340090852
Sine of 15 degrees 0.25881904510252
Cosine of 15 degrees 0.96592582628907
Tangent of 15 degrees 0.26794919243112
15 degrees in radiants 0.26179938779915
15 radiants in degrees 859.43669269623

Base conversion of the number 15

Binary 1111
Octal 17
Duodecimal 13
Hexadecimal f
« Previous Next »