20804845 is an odd 8-digits composite number following 20804844
and preceding 20804846 . In scientific notation, it is written as 2.0804845 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16643872 positive integers (up to 20804845) that are relatively prime to 20804845.
20804845 has 4 divisors, whose sum is 24965820
The reverse of 20804845 is 54840802
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred four thousand eight hundred forty-five
Scientific notation
2.0804845 × 10^7
Engineering notation
2.0804845 × 10^6
Prime Factorization
5 × 4160969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804845
Product of the distinct prime numbers
The prime factorization of 20804845 is 5 × 4160969.
Since it has a total of 2 prime factors.
10 , 6 , 2 , 39 , 391 , 725 , 5546 , 4115 , 34785 , 96583 , 220620 , 182876 , 831536 , 8233724 , 67856436 , 60914122 , 467584917 , 29993166 , 9212122437 , 8071329579
n×2
41609690
n×3
62414535
n×4
83219380
n×5
104024225
n÷2
10402422.5
n÷3
6934948.3333333
n÷3
5201211.25
n÷5
4160969
n2
432841575474025
n3
9.0052018872929E+21
n4
1.8735182945884E+29
n5
3.8978257723575E+36
2 √n
4561.2328377315
3 √n
275.03512498998
4 √n
67.536899823219
5 √n
29.082577689322
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
-20804844
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 20804845 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804845) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010011101101
3
Ternary
1110010222212211
4
Quaternary
1033113103231
5
Quinary
20311223340
6
Senary
2021530421
8
Octal
117272355
10
Decimal
20804845
12
Duodecimal
6b73a11
16
Hexadecimal
13d74ed
20
Vigesimal
6a0c25
36
Base36
cdx4d
md5
e3898c505efc32ac8e70778f8aeb3711
sha1
8735e3affc23b144ade07052e021660f56c5ed84
sha256
4373017e0e9daf4c318cffa922fc69abed4221571aabe8149fd08b32e2299b36
sha512
8e6cc5e2a7487c81bac3457ab9c2b3ee82de330a36ad6c6e783886f50b2733131c1df7939383a7e42a7d84c3cf20b12b62d9362aec2558c3af0cc8addf6ed685
ripemd-160
6294a1c36d1332f8559b076e95aa1f7d6e86121b
Diameter
41609690
Circumference
130720696.42215
Area
1.3598119136774E+15
Volume
3.7720901457616E+22
Surface area
5.4392476547097E+15
Circumference
130720696.42215
Perimeter
83219380
Area
432841575474025
Diagonal
29422493.96207
Surface area
2597049452844150
Volume
9.0052018872929E+21
Space diagonal
36035048.583595
Perimeter
62414535
Area
1.8742590008729E+14
Altitude
18017524.291798
Surface area
1.8742590008729E+14
Volume
1.0612732200765E+21
Height
9807497.9873567