90787989 is an odd 8-digits composite number following 90787988
and preceding 90787990 . In scientific notation, it is written as 9.0787989 × 10^7.
The sum of its digits is 57. It has a total of 3 prime factors and 8 positive divisors.
There are 60089616 positive integers (up to 90787989) that are relatively prime to 90787989.
90787989 has 8 divisors, whose sum is 121922080
The reverse of 90787989 is 98978709
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
ninety million seven hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
9.0787989 × 10^7
Engineering notation
9.0787989 × 10^6
Prime Factorization
3 × 139 × 217717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
90787989
Product of the distinct prime numbers
The prime factorization of 90787989 is 3 × 139 × 217717.
Since it has a total of 3 prime factors.
8 , 3 , 70 , 25 , 759 , 281 , 9473 , 3890 , 71840 , 61454 , 701163 , 941129 , 5433695 , 5348415 , 46540877 , 60364566 , 519251857 , 374433540 , 1516867907 , 4755433202
n×2
181575978
n×3
272363967
n×4
363151956
n×5
453939945
n÷2
45393994.5
n÷3
30262663
n÷3
22696997.25
n÷5
18157597.8
n2
8242458946664121
n3
7.4831627218269E+23
n4
6.7938129487443E+31
n5
6.1679661525866E+39
2 √n
9528.2731384024
3 √n
449.44456408912
4 √n
97.612873835383
5 √n
39.048619010686
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-90787988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 90787989 can be divided by 8 positive divisors.
The sum of these divisors (counting 90787989) is 1, the average is 0.125.
Base
System
Value
2
Binary
101011010010101000010010101
3
Ternary
20022211111201010
4
Quaternary
11122111002111
5
Quinary
141220203424
6
Senary
13001522433
8
Octal
532250225
10
Decimal
90787989
12
Duodecimal
264a3419
16
Hexadecimal
5695095
20
Vigesimal
18789j9
36
Base36
1i1wgl
md5
67bf97b1c7947caf94cff796b78f7b1d
sha1
823752ddfe9ad3b6a2295b6777821497aa961a94
sha256
10b13be12ada12ce9ff4c7699c655870a4ced55d228d06330495a6b90ab67794
sha512
d0cb7303395a0c5743b5fd5328fb621fa86f7dcd62469e70e612ede6b5b5d60040adc5b470b29e106629cd9cf2764b9c3f43ab5d0c47881d61c5d24f323a829b
ripemd-160
2b377021763b346e301794a9938098b572fa173a
Diameter
181575978
Circumference
570437758.55318
Area
2.5894448474355E+16
Volume
3.1345398710011E+24
Surface area
1.0357779389742E+17
Circumference
570437758.55318
Perimeter
363151956
Area
8242458946664121
Diagonal
128393605.34438
Surface area
49454753679984726
Volume
7.4831627218269E+23
Space diagonal
157249409.665
Perimeter
272363967
Area
3.5690894187307E+15
Altitude
78624704.832502
Surface area
3.5690894187307E+15
Volume
8.8189918422104E+22
Height
42797868.448126