# 90

9

12

234

## Factorization

90 = 2 × 3 × 3 × 5

Factor Count
2 1
3 2
5 1

8100

729000

## Square root of 90

9.48683298050513812427197990473360...

## Cube root of 90

4.48140474655716403162841743323952...

4095

## Reciprocal of 90

0.0111111111111111

1011010

7

## Octal of 90

132

5a

 Prime number No Hexagonal number No Perfect number No Deficient number No Abundant number No Mersenne number No Harshad number Yes Harmonic divisor number No

QR90 (sequence)

121

24

12

0

## Properties of 90

Properties of the number 90: 90 has 12 divisors. The divisors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 and the sum of them is 234. The factorization of 90 is 2 × 3 × 3 × 5. The square and cube of 90 are 8100 and 729000 respectively. The square root and cube root of 90 are 9.48683298050513812427197990473360... and 4.48140474655716403162841743323952.... The binary, octal, hexadecimal of 90 are 1011010, 132, 5a. 90 is not a prime number, not hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, Harshad number, not harmonic divisor number.

## sin 90

0.89399666360055785041538456425769...

## cos 90

-0.44807361612917012694268237282813...

## tan 90

-1.99520041220824206895656516280724...

1

0

infinity

## log 90

4.49980967033026502122083911672235...

## log10 90

1.95424250943932475976794194139075...

## log2 90

6.49185309632967477710963066783734...