20809211 is an odd 8-digits composite number following 20809210
and preceding 20809212 . In scientific notation, it is written as 2.0809211 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20091624 positive integers (up to 20809211) that are relatively prime to 20809211.
20809211 has 4 divisors, whose sum is 21526800
The reverse of 20809211 is 11290802
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eight hundred nine thousand two hundred eleven
Scientific notation
2.0809211 × 10^7
Engineering notation
2.0809211 × 10^6
Prime Factorization
29 × 717559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20809211
Product of the distinct prime numbers
The prime factorization of 20809211 is 29 × 717559.
Since it has a total of 2 prime factors.
3 , 4 , 89 , 42 , 591 , 311 , 1195 , 8143 , 2854 , 78792 , 185416 , 854390 , 9816418 , 5798897 , 2708917 , 87753730 , 732080059 , 218137280 , 7724888052 , 3307547471
n×2
41618422
n×3
62427633
n×4
83236844
n×5
104046055
n÷2
10404605.5
n÷3
6936403.6666667
n÷3
5202302.75
n÷5
4161842.2
n2
433023262442521
n3
9.0108724360748E+21
n4
1.8750914581636E+29
n5
3.9019173797225E+36
2 √n
4561.7114113017
3 √n
275.05436280641
4 √n
67.540442782837
5 √n
29.083798211533
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
-20809210
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 20809211 can be divided by 4 positive divisors.
The sum of these divisors (counting 20809211) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000010111111011
3
Ternary
1110011012212112
4
Quaternary
1033120113323
5
Quinary
20311343321
6
Senary
2022002535
8
Octal
117302773
10
Decimal
20809211
12
Duodecimal
6b7644b
16
Hexadecimal
13d85fb
20
Vigesimal
6a130b
36
Base36
ce0hn
md5
28a26fffef95a3f9d5021c5b70416c10
sha1
c78ca28da898bd737d788a2709d9f6a4c9cd4089
sha256
f1e37b82d23e2d6ebc73cfbccbf0e37e6f8fd7487c98ef8f755f9fee413d5484
sha512
1469bc413104eb04aa7c22755129c82e6fb6d93a7da1474dc10ccd2c73da20314bda989176e23dc4c45de05bed9a5c31deff1fc60ed154d96f94b1482539c56c
ripemd-160
5d70d7eef03c5e94cc144d04d08a7916e5e882ff
Diameter
41618422
Circumference
130748128.8092
Area
1.3603827001229E+15
Volume
3.774465419681E+22
Surface area
5.4415308004916E+15
Circumference
130748128.8092
Perimeter
83236844
Area
433023262442521
Diagonal
29428668.418483
Surface area
2598139574655126
Volume
9.0108724360748E+21
Space diagonal
36042610.717421
Perimeter
62427633
Area
1.8750457285242E+14
Altitude
18021305.358711
Surface area
1.8750457285242E+14
Volume
1.0619415006592E+21
Height
9809556.1394945