128520238 is an even 9-digits composite number following 128520237
and preceding 128520239 . In scientific notation, it is written as 1.28520238 × 10^8.
The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors.
There are 47120640 positive integers (up to 128520238) that are relatively prime to 128520238.
128520238 has 32 divisors, whose sum is 236343744
The reverse of 128520238 is 832025821
Previous prime number is 17
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-eight million five hundred twenty thousand two hundred thirty-eight
Scientific notation
1.28520238 × 10^8
Engineering notation
1.28520238 × 10^6
Prime Factorization
2 × 7 × 77 × 17 × 7013
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
128520238
Product of the distinct prime numbers
The prime factorization of 128520238 is 2 × 7 × 77 × 17 × 7013.
Since it has a total of 5 prime factors.
8 , 1 , 14 , 39 , 865 , 666 , 961 , 7849 , 99435 , 77025 , 439860 , 167067 , 9683458 , 4902455 , 93899722 , 54678460 , 958373156 , 606327732 , 3343475921 , 6462002239
n×2
257040476
n×3
385560714
n×4
514080952
n×5
642601190
n÷2
64260119
n÷3
42840079.333333
n÷3
32130059.5
n÷5
25704047.6
n2
16517451575576644
n3
2.1228268076466E+24
n4
2.7282620655152E+32
n5
3.5063688998638E+40
2 √n
11336.676673523
3 √n
504.65026662474
4 √n
106.47383093288
5 √n
41.859525804006
1 , 2 , 7 , 14 , 17 , 34 , 77 , 119 , 154 , 238 , 539 , 1078 , 1309 , 2618 , 7013 , 9163 , 14026 , 18326 , 49091 , 98182 , 119221 , 238442 , 540001 , 834547 , 1080002 , 1669094 , 3780007 , 7560014 , 9180017 , 18360034 , 64260119 , 128520238
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
-128520237
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 128520238 can be divided by 32 positive divisors.
The sum of these divisors (counting 128520238) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101010010001000000101110
3
Ternary
22221211111121211
4
Quaternary
13222101000232
5
Quinary
230400121423
6
Senary
20430345034
8
Octal
752210056
10
Decimal
128520238
12
Duodecimal
3705b17a
16
Hexadecimal
7a9102e
20
Vigesimal
20350bi
36
Base36
24imum
md5
2988e9eb1ed5a2313c3558919c89cfd7
sha1
a87ac8a6a98d62db6986417d91084e84c28ea69b
sha256
d12fbab117461867f7fe8f7be1edbdbbcdf400486d5ea53d251cb326e4ca39ec
sha512
7c54b244dc6e319608d52ee86a9fda51f0b58766d241e002ee966ff582aff17f8acc45dc3d56dd848a38ddb5bb8577fd9e7d9ddd163f7bdeda6a23ef31cc04c3
ripemd-160
d4edd97a01d0ec7868b7347765a6774355227d34
Diameter
257040476
Circumference
807516471.07682
Area
5.1891104525857E+16
Volume
8.892076138328E+24
Surface area
2.0756441810343E+17
Circumference
807516471.07682
Perimeter
514080952
Area
16517451575576644
Diagonal
181755063.61902
Surface area
99104709453459864
Volume
2.1228268076466E+24
Space diagonal
222603582.01684
Perimeter
385560714
Area
7.1522663351143E+15
Altitude
111301791.00842
Surface area
7.1522663351143E+15
Volume
2.5017753849525E+23
Height
60585021.206339