20804909 is an odd 8-digits prime number following 20804908
and preceding 20804910 . In scientific notation, it is written as 2.0804909 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 20804908 positive integers (up to 20804909) that are relatively prime to 20804909.
20804909 has 2 divisors, whose sum is 20804910
The reverse of 20804909 is 90940802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred four thousand nine hundred nine
Scientific notation
2.0804909 × 10^7
Engineering notation
2.0804909 × 10^6
Prime Factorization
20804909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20804909
Product of the distinct prime numbers
The prime factorization of 20804909 is 20804909.
Since it has a total of 1 prime factors.
7 , 6 , 45 , 75 , 72 , 667 , 1061 , 6490 , 15883 , 62303 , 919148 , 926516 , 3893645 , 49300 , 68494310 , 41593350 , 635716677 , 41306236 , 9675237258 , 941836807
n×2
41609818
n×3
62414727
n×4
83219636
n×5
104024545
n÷2
10402454.5
n÷3
6934969.6666667
n÷3
5201227.25
n÷5
4160981.8
n2
432844238498281
n3
9.005284993131E+21
n4
1.8735413480116E+29
n5
3.8978857253118E+36
2 √n
4561.2398533732
3 √n
275.0354070113
4 √n
67.536951762522
5 √n
29.082595582103
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20804910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10402455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4561.2399629925
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999038688
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20804909 can be divided by 2 positive divisors.
The sum of these divisors (counting 20804909) is 20804910, the average is 10402455.
Base
System
Value
2
Binary
1001111010111010100101101
3
Ternary
1110010222222012
4
Quaternary
1033113110231
5
Quinary
20311224114
6
Senary
2021531005
8
Octal
117272455
10
Decimal
20804909
12
Duodecimal
6b73a65
16
Hexadecimal
13d752d
20
Vigesimal
6a0c59
36
Base36
cdx65
md5
fc7c42849967af91246c4d63bf274740
sha1
12acbda4a2e526570de6b55dfc0cc59127b2d420
sha256
2e4b45b37f936691522998ebff0bc3fb1ef74cfb071a95c9d7e6fe24ad6414d8
sha512
210638a697ca8198c24e043adfa3c0b985d02ae8d31ce848ed80eaac62abdb440171a18a32aa3fbd577c39bc6dbc2f04c6b0b3c41b0af871c68b3ce7d3fd5ef9
ripemd-160
1b2c0e7ed7351782988242bb1e2cfd40a4ea5566
Diameter
41609818
Circumference
130721098.54601
Area
1.3598202798149E+15
Volume
3.7721249570537E+22
Surface area
5.4392811192595E+15
Circumference
130721098.54601
Perimeter
83219636
Area
432844238498281
Diagonal
29422584.471738
Surface area
2597065430989686
Volume
9.005284993131E+21
Space diagonal
36035159.434847
Perimeter
62414727
Area
1.8742705321062E+14
Altitude
18017579.717424
Surface area
1.8742705321062E+14
Volume
1.0612830141934E+21
Height
9807528.157246