128538161 is an odd 9-digits composite number following 128538160
and preceding 128538162 . In scientific notation, it is written as 1.28538161 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 127093824 positive integers (up to 128538161) that are relatively prime to 128538161.
128538161 has 4 divisors, whose sum is 129982500
The reverse of 128538161 is 161835821
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-eight million five hundred thirty-eight thousand one hundred sixty-one
Scientific notation
1.28538161 × 10^8
Engineering notation
1.28538161 × 10^6
Prime Factorization
89 × 1444249
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128538161
Product of the distinct prime numbers
The prime factorization of 128538161 is 89 × 1444249.
Since it has a total of 2 prime factors.
9 , 9 , 3 , 76 , 636 , 210 , 729 , 331 , 53956 , 59660 , 913006 , 910067 , 5231868 , 1714480 , 71839319 , 68423540 , 790611118 , 147946009 , 3285007844 , 4188550421
n×2
257076322
n×3
385614483
n×4
514152644
n×5
642690805
n÷2
64269080.5
n÷3
42846053.666667
n÷3
32134540.25
n÷5
25707632.2
n2
16522058833261921
n3
2.1237150583613E+24
n4
2.7297842808977E+32
n5
3.508814513933E+40
2 √n
11337.467133359
3 √n
504.67372447711
4 √n
106.47754285932
5 √n
41.860693256612
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
-128538160
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 128538161 can be divided by 4 positive divisors.
The sum of these divisors (counting 128538161) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101010010101011000110001
3
Ternary
22221212102012122
4
Quaternary
13222111120301
5
Quinary
230401210121
6
Senary
20431004025
8
Octal
752253061
10
Decimal
128538161
12
Duodecimal
37069615
16
Hexadecimal
7a95631
20
Vigesimal
2037581
36
Base36
24j0oh
md5
76657141bbc921ee3d22e336dbbd5047
sha1
7bfbfcf90c98ac88b3cfd8fec191393fc32e180c
sha256
84df38f21fd8e2c2ac7952ccfc2750c8030b04619b80d99d0a888a0a6629e16d
sha512
19a2c419160f303681146bd43f990fc67d3d402619d91e034f3f7a537c9504da5ab1049a75fc6225c29f820ebb06dc579a20565679419a19bd01ae3db0a4114c
ripemd-160
65a50e4f8e9b8eb7cdc3b4b127ca68bfbae8da0a
Diameter
257076322
Circumference
807629084.60708
Area
5.1905578652754E+16
Volume
8.8957968342211E+24
Surface area
2.0762231461102E+17
Circumference
807629084.60708
Perimeter
514152644
Area
16522058833261921
Diagonal
181780410.5687
Surface area
99132352999571526
Volume
2.1237150583613E+24
Space diagonal
222634625.56347
Perimeter
385614483
Area
7.154261336213E+15
Altitude
111317312.78173
Surface area
7.154261336213E+15
Volume
2.5028221984588E+23
Height
60593470.189565