81170090 is an even 8-digits composite number following 81170089
and preceding 81170091 . In scientific notation, it is written as 8.1170090 × 10^7.
The sum of its digits is 26. It has a total of 5 prime factors and 32 positive divisors.
There are 29764800 positive integers (up to 81170090) that are relatively prime to 81170090.
81170090 has 32 divisors, whose sum is 158768640
The reverse of 81170090 is 09007118
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred seventy thousand ninety
Scientific notation
8.1170090 × 10^7
Engineering notation
8.1170090 × 10^6
Prime Factorization
2 × 5 × 19 × 31 × 13781
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81170090
Product of the distinct prime numbers
The prime factorization of 81170090 is 2 × 5 × 19 × 31 × 13781.
Since it has a total of 5 prime factors.
1 , 1 , 38 , 91 , 894 , 486 , 8181 , 6534 , 55241 , 31832 , 871800 , 565173 , 6464979 , 6829815 , 10979604 , 93822638 , 548000652 , 830314885 , 3991673681 , 4024411796
n×2
162340180
n×3
243510270
n×4
324680360
n×5
405850450
n÷2
40585045
n÷3
27056696.666667
n÷3
20292522.5
n÷5
16234018
n2
6588583510608100
n3
5.3479591652858E+23
n4
4.3409432676257E+31
n5
3.5235475571807E+39
2 √n
9009.4444889793
3 √n
432.97751395763
4 √n
94.91809358062
5 √n
38.183805178114
1 , 2 , 5 , 10 , 19 , 31 , 38 , 62 , 95 , 155 , 190 , 310 , 589 , 1178 , 2945 , 5890 , 13781 , 27562 , 68905 , 137810 , 261839 , 427211 , 523678 , 854422 , 1309195 , 2136055 , 2618390 , 4272110 , 8117009 , 16234018 , 40585045 , 81170090
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81170089
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81170090 can be divided by 32 positive divisors.
The sum of these divisors (counting 81170090) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101101000111010101010
3
Ternary
12122201212102122
4
Quaternary
10311220322222
5
Quinary
131234420330
6
Senary
12015431242
8
Octal
465507252
10
Decimal
81170090
12
Duodecimal
23225522
16
Hexadecimal
4d68eaa
20
Vigesimal
157654a
36
Base36
1cbr8q
md5
d44efec5bbbc242461c4e4f1cc04f9a1
sha1
6c89a57d8b0e9c25637e3d51c8d4d288046fe6ad
sha256
23c6e31e2a54c5cfcd9c294a9fee57c9f7d4ba97ed1ce9a3adef1f757fefc405
sha512
6f4374504de45c98a6a8a57bbd79864303b12f298671fed6c7f209ff7f698b316cea8c06b1443ea427ade8c35f2a554925811e8d548f83b4526f8600333c72fe
ripemd-160
b9857e3ea962eefc8c1cba72d02007ba92b4bd5a
Diameter
162340180
Circumference
510006716.87044
Area
2.0698645554489E+16
Volume
2.2401478967147E+24
Surface area
8.2794582217957E+16
Circumference
510006716.87044
Perimeter
324680360
Area
6588583510608100
Diagonal
114791842.13704
Surface area
39531501063648600
Volume
5.3479591652858E+23
Space diagonal
140590719.93494
Perimeter
243510270
Area
2.8529403475709E+15
Altitude
70295359.967469
Surface area
2.8529403475709E+15
Volume
6.3026303188038E+22
Height
38263947.379015