128520309 is an odd 9-digits composite number following 128520308
and preceding 128520310 . In scientific notation, it is written as 1.28520309 × 10^8.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 85680204 positive integers (up to 128520309) that are relatively prime to 128520309.
128520309 has 4 divisors, whose sum is 171360416
The reverse of 128520309 is 903025821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-eight million five hundred twenty thousand three hundred nine
Scientific notation
1.28520309 × 10^8
Engineering notation
1.28520309 × 10^6
Prime Factorization
3 × 42840103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128520309
Product of the distinct prime numbers
The prime factorization of 128520309 is 3 × 42840103.
Since it has a total of 2 prime factors.
8 , 6 , 26 , 61 , 800 , 789 , 2688 , 9920 , 75911 , 26310 , 803255 , 428909 , 9905616 , 8929116 , 58471428 , 85284541 , 887062412 , 96155185 , 2537378147 , 7482394823
n×2
257040618
n×3
385560927
n×4
514081236
n×5
642601545
n÷2
64260154.5
n÷3
42840103
n÷3
32130077.25
n÷5
25704061.8
n2
16517469825455481
n3
2.1228303258657E+24
n4
2.7282680943483E+32
n5
3.5063785852049E+40
2 √n
11336.679804952
3 √n
504.65035955476
4 √n
106.47384563803
5 √n
41.859530428999
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
-128520308
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 128520309 can be divided by 4 positive divisors.
The sum of these divisors (counting 128520309) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101010010001000001110101
3
Ternary
22221211111201110
4
Quaternary
13222101001311
5
Quinary
230400122214
6
Senary
20430345233
8
Octal
752210165
10
Decimal
128520309
12
Duodecimal
3705b219
16
Hexadecimal
7a91075
20
Vigesimal
20350f9
36
Base36
24imwl
md5
dc8fc2b6ecaf992837c7d3af107c3df7
sha1
d753e28be81912fd35c0d3634dd3fb66b5a39d10
sha256
2f6beb146fed486e51e16b3a6c1ea0de274fe6e7c5133b74e62a402d7c4ace97
sha512
fba795de976110180a27b1e2f69fbb415fe4ace53f88f1ab0eda0d9e09b3750089ea451b1b46182c177de8b937eaf96d87a9e340adf0145f5e268013fd2f249d
ripemd-160
173ef3fb75f2c2fa2ded5979338c05b730c156d0
Diameter
257040618
Circumference
807516917.18298
Area
5.1891161859542E+16
Volume
8.8920908754098E+24
Surface area
2.0756464743817E+17
Circumference
807516917.18298
Perimeter
514081236
Area
16517469825455481
Diagonal
181755164.02818
Surface area
99104818952732886
Volume
2.1228303258657E+24
Space diagonal
222603704.99245
Perimeter
385560927
Area
7.1522742375437E+15
Altitude
111301852.49623
Surface area
7.1522742375437E+15
Volume
2.5017795312135E+23
Height
60585054.67606