90131809 is an odd 8-digits composite number following 90131808
and preceding 90131810 . In scientific notation, it is written as 9.0131809 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 90074116 positive integers (up to 90131809) that are relatively prime to 90131809.
90131809 has 4 divisors, whose sum is 90189504
The reverse of 90131809 is 90813109
Previous prime number is 1607
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
ninety million one hundred thirty-one thousand eight hundred nine
Scientific notation
9.0131809 × 10^7
Engineering notation
9.0131809 × 10^6
Prime Factorization
1607 × 56087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
90131809
Product of the distinct prime numbers
The prime factorization of 90131809 is 1607 × 56087.
Since it has a total of 2 prime factors.
4 , 4 , 93 , 44 , 311 , 152 , 3008 , 635 , 78157 , 97937 , 171648 , 716471 , 4044320 , 6665979 , 3263627 , 91295460 , 430559474 , 447127478 , 5472217356 , 6847274503
n×2
180263618
n×3
270395427
n×4
360527236
n×5
450659045
n÷2
45065904.5
n÷3
30043936.333333
n÷3
22532952.25
n÷5
18026361.8
n2
8123742993612481
n3
7.3220765186537E+23
n4
6.5995200226268E+31
n5
5.9482667817107E+39
2 √n
9493.7773831073
3 √n
448.359141822
4 √n
97.436016868031
5 √n
38.992009490073
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-90131808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 90131809 can be divided by 4 positive divisors.
The sum of these divisors (counting 90131809) is 1, the average is 0.25.
Base
System
Value
2
Binary
101010111110100110101100001
3
Ternary
20021121011121011
4
Quaternary
11113310311201
5
Quinary
141033204214
6
Senary
12535500521
8
Octal
527646541
10
Decimal
90131809
12
Duodecimal
26227741
16
Hexadecimal
55f4d61
20
Vigesimal
18369a9
36
Base36
1hnu5d
md5
319272a8156269daee53467787654d4c
sha1
ffe4b2ab4d9a6ecd483a21078161eb3d1830c109
sha256
52df7ad7fc516649f611a3562a1724d7f6b5bc85bccfabaf85e8dc9d1e3bc128
sha512
961ec960aa613801adce9c8f3413556c70144613f334b7be6da5cd83b744937774354c1160c45ec24cf70251e603d56863dc603d73ee962504c39a5f07fd2d68
ripemd-160
cf617313ee3e7bf89f3cad4ceb99a53ae9760e6f
Diameter
180263618
Circumference
566314858.01832
Area
2.5521491308385E+16
Volume
3.0670642400033E+24
Surface area
1.0208596523354E+17
Circumference
566314858.01832
Perimeter
360527236
Area
8123742993612481
Diagonal
127465626.68902
Surface area
48742457961674886
Volume
7.3220765186537E+23
Space diagonal
156112872.56609
Perimeter
270395427
Area
3.5176839031421E+15
Altitude
78056436.283047
Surface area
3.5176839031421E+15
Volume
8.629149931178E+22
Height
42488542.229674