81130135 is an odd 8-digits composite number following 81130134
and preceding 81130136 . In scientific notation, it is written as 8.1130135 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 64904104 positive integers (up to 81130135) that are relatively prime to 81130135.
81130135 has 4 divisors, whose sum is 97356168
The reverse of 81130135 is 53103118
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million one hundred thirty thousand one hundred thirty-five
Scientific notation
8.1130135 × 10^7
Engineering notation
8.1130135 × 10^6
Prime Factorization
5 × 16226027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81130135
Product of the distinct prime numbers
The prime factorization of 81130135 is 5 × 16226027.
Since it has a total of 2 prime factors.
7 , 7 , 90 , 56 , 104 , 859 , 2522 , 9664 , 86470 , 7700 , 390763 , 237711 , 9497922 , 4475247 , 2526136 , 70265905 , 300767619 , 836613613 , 4524440110 , 7981279087
n×2
162260270
n×3
243390405
n×4
324520540
n×5
405650675
n÷2
40565067.5
n÷3
27043378.333333
n÷3
20282533.75
n÷5
16226027
n2
6582098805118225
n3
5.3400656464258E+23
n4
4.3324024680339E+31
n5
3.5148839710592E+39
2 √n
9007.2268207257
3 √n
432.90645964089
4 √n
94.906410851563
5 √n
38.180045334027
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
-81130134
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 81130135 can be divided by 4 positive divisors.
The sum of these divisors (counting 81130135) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011111001010010111
3
Ternary
12122122211121211
4
Quaternary
10311133022113
5
Quinary
131232131020
6
Senary
12014522251
8
Octal
465371227
10
Decimal
81130135
12
Duodecimal
23206387
16
Hexadecimal
4d5f297
20
Vigesimal
157156f
36
Base36
1cawev
md5
65e42d1a39dcbec3971087f09e8ebdcf
sha1
c58d42bbc03a30192173785ccec43d44f097d7b3
sha256
12f401f7e7d3a11572116b77e3b449cdb205cf1bb5bc17033126b549f3a2c03f
sha512
79d2f83398a85602e87012bed31227c10a7f18b9c19e626676590cde483746edfc52c846159bc8600697f6bf88e34e5496c83c5b42bdc0ae483f98b92116c103
ripemd-160
79d7995b2e58525505d3868ac42bdd0e425f77f7
Diameter
162260270
Circumference
509755672.2015
Area
2.0678273251362E+16
Volume
2.2368414672665E+24
Surface area
8.2713093005446E+16
Circumference
509755672.2015
Perimeter
324520540
Area
6582098805118225
Diagonal
114735337.23416
Surface area
39492592830709350
Volume
5.3400656464258E+23
Space diagonal
140521515.84492
Perimeter
243390405
Area
2.8501323877258E+15
Altitude
70260757.922461
Surface area
2.8501323877258E+15
Volume
6.293327717615E+22
Height
38245112.411387