28161009 is an odd 8-digits composite number following 28161008
and preceding 28161010 . In scientific notation, it is written as 2.8161009 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 18597912 positive integers (up to 28161009) that are relatively prime to 28161009.
28161009 has 12 divisors, whose sum is 41058576
The reverse of 28161009 is 90016182
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million one hundred sixty-one thousand nine
Scientific notation
2.8161009 × 10^7
Engineering notation
2.8161009 × 10^6
Prime Factorization
3 × 3 × 107 × 29243
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9387003
Product of the distinct prime numbers
The prime factorization of 28161009 is 3 × 3 × 107 × 29243.
Since it has a total of 4 prime factors.
1 , 6 , 85 , 10 , 782 , 423 , 7352 , 7322 , 62611 , 99481 , 68918 , 901918 , 755876 , 5848787 , 6789797 , 13137842 , 75915614 , 392389187 , 7795762588 , 9253907176
n×2
56322018
n×3
84483027
n×4
112644036
n×5
140805045
n÷2
14080504.5
n÷3
9387003
n÷3
7040252.25
n÷5
5632201.8
n2
793042427898081
n3
2.233287494942E+22
n4
6.2891629244648E+29
n5
1.7710917371832E+37
2 √n
5306.6947340129
3 √n
304.23983050978
4 √n
72.847064004069
5 √n
30.897948308485
1 , 3 , 9 , 107 , 321 , 963 , 29243 , 87729 , 263187 , 3129001 , 9387003 , 28161009
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
-28161008
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 28161009 can be divided by 12 positive divisors.
The sum of these divisors (counting 28161009) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101011011011001111110001
3
Ternary
1221222201122100
4
Quaternary
1223123033301
5
Quinary
24202123014
6
Senary
2443331013
8
Octal
153331761
10
Decimal
28161009
12
Duodecimal
9520a69
16
Hexadecimal
1adb3f1
20
Vigesimal
8g02a9
36
Base36
grl69
md5
8b05cbc7eed4a723ab6cfcff002de8f1
sha1
0c2431aae500cdd4e85f7d71cdefa2645f7aa4e7
sha256
d5ac3aeb7dca1f382e73975218282fa2fa0e12ac1d6cc0ec0a22286c4b01891f
sha512
de2041c6cced2edaa1d3128cd5b893d2045eca827a2af9fde59a2b117d9e8fe5160c714191c20a320b5400ca91281fb442c3e73df88e061d639ed23921966508
ripemd-160
91cd2e136cb88783dabee9f650107199e5824e34
Diameter
56322018
Circumference
176940837.98415
Area
2.4914162654696E+15
Volume
9.3547727832849E+22
Surface area
9.9656650618785E+15
Circumference
176940837.98415
Perimeter
112644036
Area
793042427898081
Diagonal
39825680.857911
Surface area
4758254567388486
Volume
2.233287494942E+22
Space diagonal
48776298.380404
Perimeter
84483027
Area
3.4339744441931E+14
Altitude
24388149.190202
Surface area
3.4339744441931E+14
Volume
2.6319545533543E+21
Height
13275226.952637