128538155 is an odd 9-digits composite number following 128538154
and preceding 128538156 . In scientific notation, it is written as 1.28538155 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 101385600 positive integers (up to 128538155) that are relatively prime to 128538155.
128538155 has 16 divisors, whose sum is 156427200
The reverse of 128538155 is 551835821
Previous prime number is 359
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million five hundred thirty-eight thousand one hundred fifty-five
Scientific notation
1.28538155 × 10^8
Engineering notation
1.28538155 × 10^6
Prime Factorization
5 × 101 × 359 × 709
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128538155
Product of the distinct prime numbers
The prime factorization of 128538155 is 5 × 101 × 359 × 709.
Since it has a total of 4 prime factors.
9 , 4 , 9 , 83 , 491 , 934 , 5205 , 2851 , 8508 , 54990 , 397120 , 496891 , 4816056 , 492753 , 32729878 , 97016206 , 80576638 , 267041638 , 2706630380 , 4412114350
n×2
257076310
n×3
385614465
n×4
514152620
n×5
642690775
n÷2
64269077.5
n÷3
42846051.666667
n÷3
32134538.75
n÷5
25707631
n2
16522057290804025
n3
2.1237147609642E+24
n4
2.7297837712061E+32
n5
3.5088136949977E+40
2 √n
11337.46686875
3 √n
504.6737166246
4 √n
106.47754161676
5 √n
41.860692865811
1 , 5 , 101 , 359 , 505 , 709 , 1795 , 3545 , 36259 , 71609 , 181295 , 254531 , 358045 , 1272655 , 25707631 , 128538155
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128538154
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128538155 can be divided by 16 positive divisors.
The sum of these divisors (counting 128538155) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010010101011000101011
3
Ternary
22221212102012102
4
Quaternary
13222111120223
5
Quinary
230401210110
6
Senary
20431004015
8
Octal
752253053
10
Decimal
128538155
12
Duodecimal
3706960b
16
Hexadecimal
7a9562b
20
Vigesimal
203757f
36
Base36
24j0ob
md5
7037ef3a280929d5bc1dd57f82b0785d
sha1
52331e3f7ff73f3cd3580b60260fe7bc1b661ad7
sha256
b1d35eb95747875f83cfe0c90dd7ee9dca9ba00b20e3ad235db41f4d49d28ab7
sha512
d9590b0df12614097772e032438407a4c2f49599c8e6df38bf224939364f0c5fc86ec8538cb4ddeb1ce69f2fb041c678e02340cddfb2a1c1eea9df5135bdad93
ripemd-160
25135303b1642876d3488b38d6dec2d2d7a0cc70
Diameter
257076310
Circumference
807629046.90797
Area
5.190557380698E+16
Volume
8.8957955884873E+24
Surface area
2.0762229522792E+17
Circumference
807629046.90797
Perimeter
514152620
Area
16522057290804025
Diagonal
181780402.08342
Surface area
99132343744824150
Volume
2.1237147609642E+24
Space diagonal
222634615.17116
Perimeter
385614465
Area
7.1542606683091E+15
Altitude
111317307.58558
Surface area
7.1542606683091E+15
Volume
2.502821847973E+23
Height
60593467.361138