128642726 is an even 9-digits composite number following 128642725
and preceding 128642727 . In scientific notation, it is written as 1.28642726 × 10^8.
The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors.
There are 60665792 positive integers (up to 128642726) that are relatively prime to 128642726.
128642726 has 24 divisors, whose sum is 204195600
The reverse of 128642726 is 627246821
Previous prime number is 149
Is Prime? no Number parity even Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred twenty-eight million six hundred forty-two thousand seven hundred twenty-six
Scientific notation
1.28642726 × 10^8
Engineering notation
1.28642726 × 10^6
Prime Factorization
2 × 23 × 137 × 149 × 137
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
938998 Product of the distinct prime numbers
The prime factorization of 128642726 is 2 × 23 × 137 × 149 × 137.
Since it has a total of 5 prime factors.
1 , 10 , 2 , 75 , 309 , 912 , 9112 , 1006 , 85922 , 48851 , 293433 , 506751 , 6516345 , 3704651 , 80451222 , 78262847 , 202448592 , 900968312 , 8100286016 , 3141232269
n×2
257285452
n×3
385928178
n×4
514570904
n×5
643213630
n÷2
64321363
n÷3
42880908.666667
n÷3
32160681.5
n÷5
25728545.2
n2
16548950952711076
n3
2.128902162997E+24
n4
2.7386777763524E+32
n5
3.5231097478559E+40
2 √n11342.077675629
3 √n504.81053703759
4 √n106.49919096232
5 √n41.867501724592
1 , 2 , 23 , 46 , 137 , 149 , 274 , 298 , 3151 , 3427 , 6302 , 6854 , 18769 , 20413 , 37538 , 40826 , 431687 , 469499 , 863374 , 938998 , 2796581 , 5593162 , 64321363 , 128642726
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128642725 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128642726 can be divided by 24 positive divisors.
The sum of these divisors (counting 128642726) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101010101110111010100110
3
Ternary
22222001201122102
4
Quaternary
13222232322212
5
Quinary
230413031401
6
Senary
20433132102
8
Octal
752567246
10
Decimal
128642726
12
Duodecimal
370ba032
16
Hexadecimal
7aaeea6
20
Vigesimal
20406g6
36
Base36
24l9d2
md5
8bd4484405b13737b45bab6face74be8
sha1
c67e3e6b83e9b378f4b09823da506d1e33b95fd9
sha256
3710e79d00fda9ef455334d12fe2398bfa083f88ef79a4a9489d1352930483a5
sha512
9989811afaeaf22593cdd8e5a52e6f13fa190c1378c384d648f2dd2a08af37eadd0edba3860c893d0e0078f06c354e65f1dcd11c23e8f33fcd11f565e3c25b95
ripemd-160
2ff00344d3134a0e81698d70f8122dfab721a2f5
Diameter
257285452
Circumference
808286085.87873
Area
5.1990062737655E+16
Volume
8.9175245273106E+24
Surface area
2.0796025095062E+17
Circumference
808286085.87873
Perimeter
514570904
Area
16548950952711076
Diagonal
181928287.80985
Surface area
99293705716266456
Volume
2.128902162997E+24
Space diagonal
222815737.45616
Perimeter
385928178
Area
7.1659059655152E+15
Altitude
111407868.72808
Surface area
7.1659059655152E+15
Volume
2.5089352598965E+23
Height
60642762.603282