# Number 91

## Properties of the number 91

 Prime Factorization 7 x 13 Divisors 1, 7, 13, 91 Count of divisors 4 Sum of divisors 112 Previous integer 90 Next integer 92 Is prime? NO Previous prime 89 Next prime 97 91st prime number ↻ calculating, please wait Is a Fibonacci number? NO 91st Fibonacci number 4660046610375530309 Zeckendorf representation 89 + 2 Is a Pell number? NO Is a regular number? NO 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 91! 1.3520015276784E+140 Square 912 8281 Square root √91 9.5393920141695 Cube 913 753571 Cubic root ∛91 4.4979414452754 Natural logarithm 4.5108595065168 Decimal logarithm 1.9590413923211

## Trigonometry of the number 91

 91 modulo 360° 91° Sine of 91 radians 0.10598751175116 Cosine of 91 radians -0.9943674609282 Tangent of 91 radians -0.10658787210537 Sine of 91 degrees 0.99984769515639 Cosine of 91 degrees -0.017452406437283 Tangent of 91 degrees -57.28996163076 91 degrees in radiants 1.5882496193148 91 radiants in degrees 5213.9159356905

## Base conversion of the number 91

 Binary 1011011 Octal 133 Duodecimal 77 Hexadecimal 5b