128538272 is an even 9-digits composite number following 128538271
and preceding 128538273 . In scientific notation, it is written as 1.28538272 × 10^8.
The sum of its digits is 38. It has a total of 7 prime factors and 24 positive divisors.
There are 64158912 positive integers (up to 128538272) that are relatively prime to 128538272.
128538272 has 24 divisors, whose sum is 253493856
The reverse of 128538272 is 272835821
Previous prime number is 643
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million five hundred thirty-eight thousand two hundred seventy-two
Scientific notation
1.28538272 × 10^8
Engineering notation
1.28538272 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 643 × 6247
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
8033642
Product of the distinct prime numbers
The prime factorization of 128538272 is 2 × 2 × 2 × 2 × 2 × 643 × 6247.
Since it has a total of 7 prime factors.
9 , 1 , 98 , 37 , 638 , 944 , 7458 , 1652 , 88889 , 43655 , 771043 , 633679 , 7708610 , 3161953 , 48958027 , 20798753 , 208611099 , 273096157 , 7477164802 , 5180515802
n×2
257076544
n×3
385614816
n×4
514153088
n×5
642691360
n÷2
64269136
n÷3
42846090.666667
n÷3
32134568
n÷5
25707654.4
n2
16522087368745984
n3
2.1237205602116E+24
n4
2.7297937102048E+32
n5
3.5088296642619E+40
2 √n
11337.472028631
3 √n
504.67386974854
4 √n
106.47756584667
5 √n
41.860700486426
1 , 2 , 4 , 8 , 16 , 32 , 643 , 1286 , 2572 , 5144 , 6247 , 10288 , 12494 , 20576 , 24988 , 49976 , 99952 , 199904 , 4016821 , 8033642 , 16067284 , 32134568 , 64269136 , 128538272
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
-128538271
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 128538272 can be divided by 24 positive divisors.
The sum of these divisors (counting 128538272) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101010010101011010100000
3
Ternary
22221212102100202
4
Quaternary
13222111122200
5
Quinary
230401211042
6
Senary
20431004332
8
Octal
752253240
10
Decimal
128538272
12
Duodecimal
370696a8
16
Hexadecimal
7a956a0
20
Vigesimal
20375dc
36
Base36
24j0rk
md5
48f6d79afe64e263789ac632439a5e95
sha1
737c1333bddaa01c244931d7199032085bb21015
sha256
8f8a685627a16be04f6dbc8841dcfc6aaf4c2315e34569589550ed4a4ddbb919
sha512
e949d9e51199afb8699619e2afdfe4f06eab6da3e9f8131dcb622a9cde506a9d4168df0811970410d8dc0c0e0352526a38840e01cd7e4c1a72dd541175ad1617
ripemd-160
4326a434a256b2cb87c581f9ab239eb52c767303
Diameter
257076544
Circumference
807629782.04065
Area
5.1905668299621E+16
Volume
8.895819880318E+24
Surface area
2.0762267319848E+17
Circumference
807629782.04065
Perimeter
514153088
Area
16522087368745984
Diagonal
181780567.5464
Surface area
99132524212475904
Volume
2.1237205602116E+24
Space diagonal
222634817.82111
Perimeter
385614816
Area
7.15427369244E+15
Altitude
111317408.91055
Surface area
7.15427369244E+15
Volume
2.5028286824516E+23
Height
60593522.515467