



Number 90

ninety

Properties of the number 90

Factorization 

2 * 3 * 3 * 5

Divisors 
1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Count of divisors 
12

Sum of divisors 
234

Previous integer 
89 
Next integer 
91 
Is prime? 
NO

Previous prime 
89

Next prime 
97

90th prime 
463

Is a Fibonacci number? 
NO

Is a Bell number? 
NO

Is a Catalan number? 
NO

Is a factorial? 
NO

Is a regular number? 
YES

Is a perfect number? 
NO

Polygonal number (s < 11)? 
NO 
Binary 
1011010 
Octal 
132 
Duodecimal 
76 
Hexadecimal 
5a 
Square 
8100 
Square root 
9.4868329805051 
Natural logarithm 
4.4998096703303 
Decimal logarithm 
1.9542425094393 
Sine 
0.89399666360056 
Cosine 
0.44807361612917 
Tangent 
1.9952004122082 

Number 90 is pronounced ninety.
Number 90 is a composite number.
Factors of 90 are 2 * 3 * 3 * 5.
Number 90 has 12 divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.
Sum of the divisors is 234.
Number 90 is not a Fibonacci number.
It is not a Bell number.
Number 90 is not a Catalan number.
Number 90 is a regular number (Hamming number).
It is a not factorial of any number.
Number 90 is an abundant number and therefore is not a perfect number.
Binary numeral for number 90 is 1011010.
Octal numeral is 132.
Duodecimal value is 76.
Hexadecimal representation is 5a.
Square of the number 90 is 8100.
Square root of the number 90 is 9.4868329805051.
Natural logarithm of 90 is 4.4998096703303
Decimal logarithm of the number 90 is 1.9542425094393
Sine of 90 is 0.89399666360056. Cosine of the number 90 is 0.44807361612917. Tangent of the number 90 is 1.9952004122082



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