20168809 is an odd 8-digits composite number following 20168808
and preceding 20168810 . In scientific notation, it is written as 2.0168809 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19867716 positive integers (up to 20168809) that are relatively prime to 20168809.
20168809 has 4 divisors, whose sum is 20469904
The reverse of 20168809 is 90886102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred sixty-eight thousand eight hundred nine
Scientific notation
2.0168809 × 10^7
Engineering notation
2.0168809 × 10^6
Prime Factorization
67 × 301027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20168809
Product of the distinct prime numbers
The prime factorization of 20168809 is 67 × 301027.
Since it has a total of 2 prime factors.
1 , 3 , 47 , 66 , 729 , 261 , 1336 , 1961 , 90851 , 70832 , 20465 , 566176 , 3819517 , 6767154 , 8530594 , 31101336 , 259920328 , 769441159 , 7627225233 , 6594951750
n×2
40337618
n×3
60506427
n×4
80675236
n×5
100844045
n÷2
10084404.5
n÷3
6722936.3333333
n÷3
5042202.25
n÷5
4033761.8
n2
406780856478481
n3
8.2042853991709E+21
n4
1.6547066519737E+29
n5
3.3373462414686E+36
2 √n
4490.9697171101
3 √n
272.20331990243
4 √n
67.014697769296
5 √n
28.902542644277
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20168808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20168809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20168809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111100000001101001
3
Ternary
1101221200101221
4
Quaternary
1030330001221
5
Quinary
20130400214
6
Senary
2000142041
8
Octal
114740151
10
Decimal
20168809
12
Duodecimal
6907921
16
Hexadecimal
133c069
20
Vigesimal
661209
36
Base36
c0acp
md5
b0cff14c5186cb81fe512a4d0a570b3c
sha1
8e9ff0cd5c0232afe8a712bb944ef98f2e253d57
sha256
ec2805906d7e3f051a5aeca9f6626d2810a93bcc5305a24d3ba740387b7493b8
sha512
39be8fc151bb26910603628111fe5698cb4b9f2e8ff621e7286a39a6a6f8b67c085ac6627ba1e00163a3a790453f7c1c759449bfd9543cfb8138c5190a116800
ripemd-160
16ea4221f6ad16f5046855ef89af4370b05f5f49
Diameter
40337618
Circumference
126724364.37211
Area
1.2779397503338E+15
Volume
3.4366030317319E+22
Surface area
5.111759001335E+15
Circumference
126724364.37211
Perimeter
80675236
Area
406780856478481
Diagonal
28523003.224713
Surface area
2440685138870886
Volume
8.2042853991709E+21
Space diagonal
34933401.916152
Perimeter
60506427
Area
1.7614127774178E+14
Altitude
17466700.958076
Surface area
1.7614127774178E+14
Volume
9.6688430675725E+20
Height
9507667.7415708