20739905 is an odd 8-digits composite number following 20739904
and preceding 20739906 . In scientific notation, it is written as 2.0739905 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 15870448 positive integers (up to 20739905) that are relatively prime to 20739905.
20739905 has 8 divisors, whose sum is 25970112
The reverse of 20739905 is 50993702
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred thirty-nine thousand nine hundred five
Scientific notation
2.0739905 × 10^7
Engineering notation
2.0739905 × 10^6
Prime Factorization
5 × 23 × 180347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20739905
Product of the distinct prime numbers
The prime factorization of 20739905 is 5 × 23 × 180347.
Since it has a total of 3 prime factors.
7 , 2 , 4 , 98 , 386 , 341 , 3738 , 2611 , 14493 , 39171 , 548715 , 991174 , 7697040 , 4811617 , 43386766 , 1512158 , 676693679 , 379158698 , 8043605547 , 4010588726
n×2
41479810
n×3
62219715
n×4
82959620
n×5
103699525
n÷2
10369952.5
n÷3
6913301.6666667
n÷3
5184976.25
n÷5
4147981
n2
430143659409025
n3
8.9211386324955E+21
n4
1.8502356772979E+29
n5
3.8373712174769E+36
2 √n
4554.1085845641
3 √n
274.74866292169
4 √n
67.484135799194
5 √n
29.064399374888
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
-20739904
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 20739905 can be divided by 8 positive divisors.
The sum of these divisors (counting 20739905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000111011101000001
3
Ternary
1110000200210122
4
Quaternary
1033013131001
5
Quinary
20302134110
6
Senary
2020310025
8
Octal
117073501
10
Decimal
20739905
12
Duodecimal
6b42315
16
Hexadecimal
13c7741
20
Vigesimal
69c9f5
36
Base36
ccj0h
md5
da274dfd2582ea6a4e3aad06d419dc2b
sha1
d8ae7bd8d3e2f4bb45470ce372464358fb7acb9e
sha256
758dda2d1d25bdbd2370d2cd835f1c5e282173c8d0b355c81495cc59de098232
sha512
e52612e4892a4d5909246e65e8646f463bed34064d23b25e7f5a80e50b7d2b5ec1049ac559a6c1cc0d0ed4531fe6cc2f6f00de57e020bf5a9485a23ef3c7e5d6
ripemd-160
cdf615f2d95c3df1c1a0cc5f4e194844fc7e6c32
Diameter
41479810
Circumference
130312666.3683
Area
1.3513361603876E+15
Volume
3.7368778119339E+22
Surface area
5.4053446415505E+15
Circumference
130312666.3683
Perimeter
82959620
Area
430143659409025
Diagonal
29330654.93333
Surface area
2580861956454150
Volume
8.9211386324955E+21
Space diagonal
35922569.204152
Perimeter
62219715
Area
1.8625766816251E+14
Altitude
17961284.602076
Surface area
1.8625766816251E+14
Volume
1.0513662704905E+21
Height
9776884.9777765