20804561 is an odd 8-digits composite number following 20804560
and preceding 20804562 . In scientific notation, it is written as 2.0804561 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20320692 positive integers (up to 20804561) that are relatively prime to 20804561.
20804561 has 4 divisors, whose sum is 21288432
The reverse of 20804561 is 16540802
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eight hundred four thousand five hundred sixty-one
Scientific notation
2.0804561 × 10^7
Engineering notation
2.0804561 × 10^6
Prime Factorization
43 × 483827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804561
Product of the distinct prime numbers
The prime factorization of 20804561 is 43 × 483827.
Since it has a total of 2 prime factors.
8 , 3 , 4 , 89 , 852 , 594 , 4857 , 4728 , 18562 , 20149 , 432824 , 272496 , 626140 , 191123 , 31830355 , 30108227 , 637470648 , 168085181 , 8369576167 , 5954319757
n×2
41609122
n×3
62413683
n×4
83218244
n×5
104022805
n÷2
10402280.5
n÷3
6934853.6666667
n÷3
5201140.25
n÷5
4160912.2
n2
432829758402721
n3
9.0048331113047E+21
n4
1.8734159975896E+29
n5
3.8975597400228E+36
2 √n
4561.2017056912
3 √n
275.03387351336
4 √n
67.536669341115
5 √n
29.082498289575
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
-20804560
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 20804561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111001111010001
3
Ternary
1110010222111022
4
Quaternary
1033113033101
5
Quinary
20311221221
6
Senary
2021525225
8
Octal
117271721
10
Decimal
20804561
12
Duodecimal
6b73815
16
Hexadecimal
13d73d1
20
Vigesimal
6a0b81
36
Base36
cdwwh
md5
b91d9b8fdcd84a10ce6e607cbfeb2650
sha1
252b401fe36e3fbae770d87ab64f19e0bdead52a
sha256
68d7f3e539019b5397863853cd22186fc4d36f81826295587aadec333a22f963
sha512
1b4d0ef9c0d59ced1893a058cb28ef46db9d0bcba071bcb34fd85b122796b3afbb4fc03a6536963ea67c08a623a211c24276f0771b7eb24c8233c55fc63fe028
ripemd-160
c579c544f5a7f86bfc4dc15ed04b9967512475cc
Diameter
41609122
Circumference
130718911.99752
Area
1.359774789253E+15
Volume
3.7719356732369E+22
Surface area
5.4390991570121E+15
Circumference
130718911.99752
Perimeter
83218244
Area
432829758402721
Diagonal
29422092.325418
Surface area
2596978550416326
Volume
9.0048331113047E+21
Space diagonal
36034556.681166
Perimeter
62413683
Area
1.8742078314532E+14
Altitude
18017278.340583
Surface area
1.8742078314532E+14
Volume
1.0612297594094E+21
Height
9807364.1084728