128537745 is an odd 9-digits composite number following 128537744
and preceding 128537746 . In scientific notation, it is written as 1.28537745 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 58760064 positive integers (up to 128537745) that are relatively prime to 128537745.
128537745 has 16 divisors, whose sum is 235040640
The reverse of 128537745 is 547735821
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred twenty-eight million five hundred thirty-seven thousand seven hundred forty-five
Scientific notation
1.28537745 × 10^8
Engineering notation
1.28537745 × 10^6
Prime Factorization
3 × 5 × 7 × 1224169
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128537745
Product of the distinct prime numbers
The prime factorization of 128537745 is 3 × 5 × 7 × 1224169.
Since it has a total of 4 prime factors.
4 , 2 , 65 , 57 , 950 , 456 , 6258 , 1820 , 75421 , 29381 , 533551 , 373196 , 4494361 , 7973246 , 36447726 , 1518796 , 242126023 , 833216036 , 8587527832 , 5400706512
n×2
257075490
n×3
385613235
n×4
514150980
n×5
642688725
n÷2
64268872.5
n÷3
42845915
n÷3
32134436.25
n÷5
25707549
n2
16521951889685025
n3
2.1236944388986E+24
n4
2.7297489424507E+32
n5
3.5087577347874E+40
2 √n
11337.448787095
3 √n
504.67318003569
4 √n
106.47745670843
5 √n
41.860666161046
1 , 3 , 5 , 7 , 15 , 21 , 35 , 105 , 1224169 , 3672507 , 6120845 , 8569183 , 18362535 , 25707549 , 42845915 , 128537745
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
-128537744
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 128537745 can be divided by 16 positive divisors.
The sum of these divisors (counting 128537745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101010010101010010010001
3
Ternary
22221212101122020
4
Quaternary
13222111102101
5
Quinary
230401201440
6
Senary
20431002053
8
Octal
752252221
10
Decimal
128537745
12
Duodecimal
37069329
16
Hexadecimal
7a95491
20
Vigesimal
2037475
36
Base36
24j0cx
md5
d4733af90876f279938cee014b0b3932
sha1
6bec71de5f5b792652ac25c8c66e2bc009e1afc9
sha256
560030814bfe205d8dafe197aa50ce199f1bcf9561abe57f72ef68eb9e8058a6
sha512
21da5a10630c7cea4d757bb75b0b19a737a1a06f349071a80fb4c6b2586819d51b56f368d536d8fb5433013b21ae6064c574a7f73ea28a6cd07f050e4442e86f
ripemd-160
37072e67c8f2f24389effb5cb6804fd8e8c7dae4
Diameter
257075490
Circumference
807626470.802
Area
5.1905242679598E+16
Volume
8.8957104636178E+24
Surface area
2.0762097071839E+17
Circumference
807626470.802
Perimeter
514150980
Area
16521951889685025
Diagonal
181779822.25585
Surface area
99131711338110150
Volume
2.1236944388986E+24
Space diagonal
222633905.03033
Perimeter
385613235
Area
7.1542150282858E+15
Altitude
111316952.51517
Surface area
7.1542150282858E+15
Volume
2.5027978981889E+23
Height
60593274.085285