20809746 is an even 8-digits composite number following 20809745
and preceding 20809747 . In scientific notation, it is written as 2.0809746 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 6936576 positive integers (up to 20809746) that are relatively prime to 20809746.
20809746 has 12 divisors, whose sum is 45087822
The reverse of 20809746 is 64790802
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eight hundred nine thousand seven hundred forty-six
Scientific notation
2.0809746 × 10^7
Engineering notation
2.0809746 × 10^6
Prime Factorization
2 × 3 × 3 × 1156097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6936582
Product of the distinct prime numbers
The prime factorization of 20809746 is 2 × 3 × 3 × 1156097.
Since it has a total of 4 prime factors.
1 , 1 , 70 , 25 , 230 , 794 , 5478 , 6115 , 37429 , 79211 , 566143 , 641444 , 1728699 , 9820163 , 39864693 , 86681073 , 960474810 , 140800524 , 243115479 , 1292827365
n×2
41619492
n×3
62429238
n×4
83238984
n×5
104048730
n÷2
10404873
n÷3
6936582
n÷3
5202436.5
n÷5
4161949.2
n2
433045528584516
n3
9.0115674562795E+21
n4
1.8752842982704E+29
n5
3.9024189924796E+36
2 √n
4561.7700511972
3 √n
275.05671998089
4 √n
67.540876890941
5 √n
29.083947757539
1 , 2 , 3 , 6 , 9 , 18 , 1156097 , 2312194 , 3468291 , 6936582 , 10404873 , 20809746
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
-20809745
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 20809746 can be divided by 12 positive divisors.
The sum of these divisors (counting 20809746) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111011000100000010010
3
Ternary
1110011020121100
4
Quaternary
1033120200102
5
Quinary
20311402441
6
Senary
2022005230
8
Octal
117304022
10
Decimal
20809746
12
Duodecimal
6b76816
16
Hexadecimal
13d8812
20
Vigesimal
6a1476
36
Base36
ce0wi
md5
cace10feafd7149d4c1954a48d08f502
sha1
91d6cb3c506ea7c387b823116742fd04a59eee47
sha256
67be336c3fc762ba8555053ccf936437c209b7e7d5a6d70851eb7d93646aabc0
sha512
71ec05bd851ecc6b9cbc8d072be33d547fc84134deeb5d9e29d184768a591cb90177297591bec7380337b83d1a9c80ae526f5e3e528b1ed4b5821852b9ec1bb7
ripemd-160
57a653e46145ebd7c65d3bd8378bcf6a45635c15
Diameter
41619492
Circumference
130751490.31334
Area
1.360452651271E+15
Volume
3.7747565490635E+22
Surface area
5.4418106050841E+15
Circumference
130751490.31334
Perimeter
83238984
Area
433045528584516
Diagonal
29429425.022739
Surface area
2598273171507096
Volume
9.0115674562795E+21
Space diagonal
36043537.364603
Perimeter
62429238
Area
1.8751421437473E+14
Altitude
18021768.682302
Surface area
1.8751421437473E+14
Volume
1.0620234095759E+21
Height
9809808.3409131