128539825 is an odd 9-digits composite number following 128539824
and preceding 128539826 . In scientific notation, it is written as 1.28539825 × 10^8.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 102173760 positive integers (up to 128539825) that are relatively prime to 128539825.
128539825 has 12 divisors, whose sum is 160409500
The reverse of 128539825 is 528935821
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
one hundred twenty-eight million five hundred thirty-nine thousand eight hundred twenty-five
Scientific notation
1.28539825 × 10^8
Engineering notation
1.28539825 × 10^6
Prime Factorization
5 × 5 × 157 × 32749
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
25707965
Product of the distinct prime numbers
The prime factorization of 128539825 is 5 × 5 × 157 × 32749.
Since it has a total of 4 prime factors.
1 , 2 , 35 , 69 , 43 , 839 , 9477 , 5188 , 3395 , 80752 , 300569 , 666407 , 6012077 , 770792 , 58566829 , 66300354 , 408566953 , 882810865 , 5744236057 , 3875153766
n×2
257079650
n×3
385619475
n×4
514159300
n×5
642699125
n÷2
64269912.5
n÷3
42846608.333333
n÷3
32134956.25
n÷5
25707965
n2
16522486611030625
n3
2.1237975375467E+24
n4
2.7299256381169E+32
n5
3.5090416378655E+40
2 √n
11337.540518119
3 √n
504.67590223103
4 √n
106.47788746082
5 √n
41.860801638173
1 , 5 , 25 , 157 , 785 , 3925 , 32749 , 163745 , 818725 , 5141593 , 25707965 , 128539825
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128539824
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128539825 can be divided by 12 positive divisors.
The sum of these divisors (counting 128539825) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101010010101110010110001
3
Ternary
22221212111111021
4
Quaternary
13222111302301
5
Quinary
230401233300
6
Senary
20431015441
8
Octal
752256261
10
Decimal
128539825
12
Duodecimal
3706a581
16
Hexadecimal
7a95cb1
20
Vigesimal
20379b5
36
Base36
24j1yp
md5
51a1f601fe61653bc36e6822af82efe6
sha1
28b6a05c861d55e7697264ab4215bc19d2a977d9
sha256
3cf9fe33bfbddfe32adb91d50ffde2c08f9317af9a126d8a5f84c8c5ca7e491b
sha512
3cd1bad7fc63c6836fa64e9246f4ea6b464b6e2311e852591fef5c39078bdc4229013dc5ecbeb5b1d57a5934581c4d38ec96a76e15e1fe96e808ec95c46cd2f5
ripemd-160
088c46de6a0b7eecee0952aeecc29544e260fbdb
Diameter
257079650
Circumference
807639539.82744
Area
5.190692255625E+16
Volume
8.8961423222252E+24
Surface area
2.07627690225E+17
Circumference
807639539.82744
Perimeter
514159300
Area
16522486611030625
Diagonal
181782763.82006
Surface area
99134919666183750
Volume
2.1237975375467E+24
Space diagonal
222637507.69601
Perimeter
385619475
Area
7.1544465694204E+15
Altitude
111318753.84801
Surface area
7.1544465694204E+15
Volume
2.502919401111E+23
Height
60594254.606688