20213809 is an odd 8-digits composite number following 20213808
and preceding 20213810 . In scientific notation, it is written as 2.0213809 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 15546960 positive integers (up to 20213809) that are relatively prime to 20213809.
20213809 has 16 divisors, whose sum is 25528320
The reverse of 20213809 is 90831202
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred thirteen thousand eight hundred nine
Scientific notation
2.0213809 × 10^7
Engineering notation
2.0213809 × 10^6
Prime Factorization
7 × 11 × 79 × 3323
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20213809
Product of the distinct prime numbers
The prime factorization of 20213809 is 7 × 11 × 79 × 3323.
Since it has a total of 4 prime factors.
2 , 10 , 11 , 34 , 181 , 669 , 8147 , 5135 , 78499 , 66132 , 144878 , 454577 , 4519492 , 6137064 , 5281324 , 77237819 , 52890013 , 788096787 , 4257288921 , 9590534358
n×2
40427618
n×3
60641427
n×4
80855236
n×5
101069045
n÷2
10106904.5
n÷3
6737936.3333333
n÷3
5053452.25
n÷5
4042761.8
n2
408598074288481
n3
8.2593234314352E+21
n4
1.6695238631226E+29
n5
3.3747436490101E+36
2 √n
4495.9769794784
3 √n
272.40561330015
4 √n
67.052046795593
5 √n
28.915428434557
1 , 7 , 11 , 77 , 79 , 553 , 869 , 3323 , 6083 , 23261 , 36553 , 255871 , 262517 , 1837619 , 2887687 , 20213809
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20213808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20213809 can be divided by 16 positive divisors.
The sum of these divisors (counting 20213809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111000000110001
3
Ternary
1102000222010121
4
Quaternary
1031013000301
5
Quinary
20133320214
6
Senary
2001130241
8
Octal
115070061
10
Decimal
20213809
12
Duodecimal
6929981
16
Hexadecimal
1347031
20
Vigesimal
666ea9
36
Base36
c192p
md5
a0ba9a7b6de0534c773ea5d1a6baa120
sha1
ba9151b5b433d819ba75dc6bc134610180df1425
sha256
6886ba141dfe5ecefc6291f84d5c95aabee7432822b19b3aac928c8f44f818c1
sha512
719fc8c98f8a2d41d29a45b97c89dbbdaed73e2bb0d0cebfd0c13fefeb4e676283d8cd7062d59dd681f6133bf75d6f660cc70bfe2cc734aae51c40036d5468d4
ripemd-160
6e788b629c78f5c3fe6531764e71bde02f56255a
Diameter
40427618
Circumference
127007107.71093
Area
1.2836487084556E+15
Volume
3.4596573087758E+22
Surface area
5.1345948338225E+15
Circumference
127007107.71093
Perimeter
80855236
Area
408598074288481
Diagonal
28586642.835019
Surface area
2451588445730886
Volume
8.2593234314352E+21
Space diagonal
35011344.202493
Perimeter
60641427
Area
1.7692815613561E+14
Altitude
17505672.101247
Surface area
1.7692815613561E+14
Volume
9.7337060106346E+20
Height
9528880.9450064