128137725 is an odd 9-digits composite number following 128137724
and preceding 128137726 . In scientific notation, it is written as 1.28137725 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 66132000 positive integers (up to 128137725) that are relatively prime to 128137725.
128137725 has 16 divisors, whose sum is 162261504
The reverse of 128137725 is 527731821
Previous prime number is 31
Is Prime? no Number parity odd Number length 9 Sum of Digits 36 Digital Root 9
Name
one hundred twenty-eight million one hundred thirty-seven thousand seven hundred twenty-five
Scientific notation
1.28137725 × 10^8
Engineering notation
1.28137725 × 10^6
Prime Factorization
45 × 5 × 31 × 18371
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
128137725 Product of the distinct prime numbers
The prime factorization of 128137725 is 45 × 5 × 31 × 18371.
Since it has a total of 4 prime factors.
1 , 7 , 3 , 73 , 405 , 552 , 9144 , 8619 , 64305 , 91286 , 71571 , 8831 , 6831069 , 3386035 , 95804017 , 32048118 , 77200729 , 669794648 , 6611951419 , 640170555
n×2
256275450
n×3
384413175
n×4
512550900
n×5
640688625
n÷2
64068862.5
n÷3
42712575
n÷3
32034431.25
n÷5
25627545
n2
16419276568175625
n3
2.1039287455918E+24
n4
2.6959264302224E+32
n5
3.4544987953607E+40
2 √n11319.793505184
3 √n504.14910790414
4 √n106.39451821021
5 √n41.834578901558
1 , 5 , 31 , 45 , 155 , 225 , 1395 , 6975 , 18371 , 91855 , 569501 , 826695 , 2847505 , 4133475 , 25627545 , 128137725
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
-128137724 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 128137725 can be divided by 16 positive divisors.
The sum of these divisors (counting 128137725) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101000110011100111111101
3
Ternary
22221010001220200
4
Quaternary
13220303213331
5
Quinary
230300401400
6
Senary
20414234113
8
Octal
750634775
10
Decimal
128137725
12
Duodecimal
36ab5939
16
Hexadecimal
7a339fd
20
Vigesimal
200h465
36
Base36
24afp9
md5
8b7cb8cb996b7bda7043a768eb5480f6
sha1
aa8af3e909caf4d3f7fd160b4dbbd78c23378089
sha256
b831b8d21cd088f0a6be63702678db0f8ea812e2ddad7ee1c3c3034199686ddd
sha512
f8950997663e81ee5a1f7d8df5e5d1edab398231fb453c4cbf26710bd54d539ba43b6c48d66001da256eeaaeed096e93df05f90a8f3214c056d2b1efff924199
ripemd-160
50576a4f2494ad4992d1baeca7fe07436a485809
Diameter
256275450
Circumference
805113071.01542
Area
5.158267864384E+16
Volume
8.8129161211036E+24
Surface area
2.0633071457536E+17
Circumference
805113071.01542
Perimeter
512550900
Area
16419276568175625
Diagonal
181214108.54663
Surface area
98515659409053750
Volume
2.1039287455918E+24
Space diagonal
221941050.06629
Perimeter
384413175
Area
7.1097553099013E+15
Altitude
110970525.03314
Surface area
7.1097553099013E+15
Volume
2.4795038052355E+23
Height
60404702.848878