128840105 is an odd 9-digits composite number following 128840104
and preceding 128840106 . In scientific notation, it is written as 1.28840105 × 10^8.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 100286208 positive integers (up to 128840105) that are relatively prime to 128840105.
128840105 has 8 divisors, whose sum is 158786952
The reverse of 128840105 is 501048821
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
one hundred twenty-eight million eight hundred forty thousand one hundred five
Scientific notation
1.28840105 × 10^8
Engineering notation
1.28840105 × 10^6
Prime Factorization
5 × 37 × 696433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128840105
Product of the distinct prime numbers
The prime factorization of 128840105 is 5 × 37 × 696433.
Since it has a total of 3 prime factors.
8 , 10 , 90 , 28 , 891 , 420 , 8915 , 9676 , 68411 , 84851 , 940810 , 255306 , 4505464 , 1665128 , 73735608 , 71434538 , 409911285 , 565497896 , 683584846 , 4414220858
n×2
257680210
n×3
386520315
n×4
515360420
n×5
644200525
n÷2
64420052.5
n÷3
42946701.666667
n÷3
32210026.25
n÷5
25768021
n2
16599772656411025
n3
2.1387164520281E+24
n4
2.7555245224453E+32
n5
3.5502206880193E+40
2 √n
11350.775524166
3 √n
505.06858526708
4 √n
106.54001841639
5 √n
41.880341468963
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128840104
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128840105 can be divided by 8 positive divisors.
The sum of these divisors (counting 128840105) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101011011111000110101001
3
Ternary
22222102202101202
4
Quaternary
13223133012221
5
Quinary
230440340410
6
Senary
20441253545
8
Octal
753370651
10
Decimal
128840105
12
Duodecimal
371942b5
16
Hexadecimal
7adf1a9
20
Vigesimal
2055055
36
Base36
24phnt
md5
4221efda17f9c7352afe6f3dff9020a0
sha1
8944a6684a6352f36c4f42699b6be6c1e4a2c1e8
sha256
f4f7a52752983d0b2a2df87a1c78fd34b4f2ca31da1a3d0a571c1815cee95864
sha512
eb34f023b42866022cb64cf8994a0d3fd972b068101323bfac0e146666500c280f3d709d360084cdd6621a6913a6e8c7b0e55be9a742b12d3d74ba53247fd5c9
ripemd-160
ad02d8bcfe1fd1941ef4498edca4bc1c620b50d2
Diameter
257680210
Circumference
809526254.71148
Area
5.2149723828642E+16
Volume
8.9586345250709E+24
Surface area
2.0859889531457E+17
Circumference
809526254.71148
Perimeter
515360420
Area
16599772656411025
Diagonal
182207423.86857
Surface area
99598635938466150
Volume
2.1387164520281E+24
Space diagonal
223157607.91251
Perimeter
386520315
Area
7.1879124087491E+15
Altitude
111578803.95625
Surface area
7.1879124087491E+15
Volume
2.5205015104405E+23
Height
60735807.956191