20809213 is an odd 8-digits prime number following 20809212
and preceding 20809214 . In scientific notation, it is written as 2.0809213 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20809212 positive integers (up to 20809213) that are relatively prime to 20809213.
20809213 has 2 divisors, whose sum is 20809214
The reverse of 20809213 is 31290802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million eight hundred nine thousand two hundred thirteen
Scientific notation
2.0809213 × 10^7
Engineering notation
2.0809213 × 10^6
Prime Factorization
20809213
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20809213
Product of the distinct prime numbers
The prime factorization of 20809213 is 20809213.
Since it has a total of 1 prime factors.
5 , 4 , 51 , 23 , 448 , 415 , 6374 , 4971 , 14351 , 40326 , 696388 , 712205 , 8278142 , 7158468 , 19990306 , 31801562 , 626051354 , 799235040 , 6535516 , 5947389484
n×2
41618426
n×3
62427639
n×4
83236852
n×5
104046065
n÷2
10404606.5
n÷3
6936404.3333333
n÷3
5202303.25
n÷5
4161842.6
n2
433023345679369
n3
9.0108750342146E+21
n4
1.8750921790335E+29
n5
3.9019192548143E+36
2 √n
4561.7116305177
3 √n
275.05437161835
4 √n
67.540444405687
5 √n
29.083798770589
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20809214
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10404607
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4561.7117401256
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999038887
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20809213 can be divided by 2 positive divisors.
The sum of these divisors (counting 20809213) is 20809214, the average is 10404607.
Base
System
Value
2
Binary
1001111011000010111111101
3
Ternary
1110011012212121
4
Quaternary
1033120113331
5
Quinary
20311343323
6
Senary
2022002541
8
Octal
117302775
10
Decimal
20809213
12
Duodecimal
6b76451
16
Hexadecimal
13d85fd
20
Vigesimal
6a130d
36
Base36
ce0hp
md5
9ea0fbbecad3d5ce414eb1e1d668c4ab
sha1
80e83c65a68f1370dafe9f0b50896f0bf4daa988
sha256
1f4e85f6e4335a461bb535c9e43e01f168c2e30baf58a67bcabb6bd35833a092
sha512
240be97bbacee3028e73f4566072191b3755cdc7b22174938261e6e79f6fa4252b046e284e6051d969df4fb2580fec43c4052ecb0c11fa540fac70def3073397
ripemd-160
804ce1f8b534a31dba4d9ef084da30c09638f84e
Diameter
41618426
Circumference
130748141.37557
Area
1.3603829616192E+15
Volume
3.7744665079872E+22
Surface area
5.4415318464767E+15
Circumference
130748141.37557
Perimeter
83236852
Area
433023345679369
Diagonal
29428671.246911
Surface area
2598140074076214
Volume
9.0108750342146E+21
Space diagonal
36042614.181523
Perimeter
62427639
Area
1.8750460889503E+14
Altitude
18021307.090761
Surface area
1.8750460889503E+14
Volume
1.061941806853E+21
Height
9809557.0823035