20205439 is an odd 8-digits composite number following 20205438
and preceding 20205440 . In scientific notation, it is written as 2.0205439 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20019960 positive integers (up to 20205439) that are relatively prime to 20205439.
20205439 has 4 divisors, whose sum is 20390920
The reverse of 20205439 is 93450202
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred five thousand four hundred thirty-nine
Scientific notation
2.0205439 × 10^7
Engineering notation
2.0205439 × 10^6
Prime Factorization
109 × 185371
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20205439
Product of the distinct prime numbers
The prime factorization of 20205439 is 109 × 185371.
Since it has a total of 2 prime factors.
1 , 5 , 16 , 31 , 869 , 91 , 4837 , 4618 , 49805 , 15624 , 688836 , 970720 , 1745751 , 2224082 , 89214730 , 19413027 , 979770267 , 677267866 , 8655676042 , 428934184
n×2
40410878
n×3
60616317
n×4
80821756
n×5
101027195
n÷2
10102719.5
n÷3
6735146.3333333
n÷3
5051359.75
n÷5
4041087.8
n2
408259765182721
n3
8.2490677815538E+21
n4
1.6667603586705E+29
n5
3.3677624754735E+36
2 √n
4495.0460509321
3 √n
272.36800947271
4 √n
67.045104600799
5 √n
28.913033416063
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
-20205438
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 20205439 can be divided by 4 positive divisors.
The sum of these divisors (counting 20205439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000100111101111111
3
Ternary
1102000112122121
4
Quaternary
1031010331333
5
Quinary
20133033224
6
Senary
2001023411
8
Octal
115047577
10
Decimal
20205439
12
Duodecimal
6924b67
16
Hexadecimal
1344f7f
20
Vigesimal
665dbj
36
Base36
c12m7
md5
b4cfb56f55aa2a4b831a3abd1d0e5fc6
sha1
6d5579c4f7772f7e207224cd61dbd8234beb6601
sha256
3f287dd17ac86c7c8b5c0b624061b24b17b270a7895dd8aa2881a87d43417bd0
sha512
1471f85a05ce9399d25736a874a0916ce327279cb8cef45e781aa7d95d4eccb4d050e46062873c9cc0e7893ee90195db8ac904ac2e9e05d7438de220b68aa96e
ripemd-160
feb554cac815f1ea16b27ead6c5f9d2daffa49ea
Diameter
40410878
Circumference
126954517.44991
Area
1.2825858790543E+15
Volume
3.4553614321992E+22
Surface area
5.1303435162173E+15
Circumference
126954517.44991
Perimeter
80821756
Area
408259765182721
Diagonal
28574805.867502
Surface area
2449558591096326
Volume
8.2490677815538E+21
Space diagonal
34996846.937234
Perimeter
60616317
Area
1.7678166399565E+14
Altitude
17498423.468617
Surface area
1.7678166399565E+14
Volume
9.7216196113403E+20
Height
9524935.2891674