20809013 is an odd 8-digits composite number following 20809012
and preceding 20809014 . In scientific notation, it is written as 2.0809013 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 20452768 positive integers (up to 20809013) that are relatively prime to 20809013.
20809013 has 8 divisors, whose sum is 21168000
The reverse of 20809013 is 31090802
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eight hundred nine thousand thirteen
Scientific notation
2.0809013 × 10^7
Engineering notation
2.0809013 × 10^6
Prime Factorization
83 × 239 × 1049
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20809013
Product of the distinct prime numbers
The prime factorization of 20809013 is 83 × 239 × 1049.
Since it has a total of 3 prime factors.
5 , 6 , 12 , 74 , 515 , 922 , 9081 , 9237 , 16676 , 18641 , 778601 , 704125 , 3444662 , 4464508 , 44117978 , 12510784 , 448638608 , 20357724 , 8900493538 , 4467528632
n×2
41618026
n×3
62427039
n×4
83236052
n×5
104045065
n÷2
10404506.5
n÷3
6936337.6666667
n÷3
5202253.25
n÷5
4161802.6
n2
433015022034169
n3
9.0106152227043E+21
n4
1.8750200930725E+29
n5
3.9017317492007E+36
2 √n
4561.6897088689
3 √n
275.05349042132
4 √n
67.540282120146
5 √n
29.083742864754
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20809012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20809013 can be divided by 8 positive divisors.
The sum of these divisors (counting 20809013) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000010100110101
3
Ternary
1110011012121012
4
Quaternary
1033120110311
5
Quinary
20311342023
6
Senary
2022002005
8
Octal
117302465
10
Decimal
20809013
12
Duodecimal
6b76305
16
Hexadecimal
13d8535
20
Vigesimal
6a12ad
36
Base36
ce0c5
md5
f30e2c1c74881355d3038a35cda35720
sha1
42830209fae25008ff866a008b492d6753dc0d54
sha256
eea78c925e1e3208a611c0bf31aeb9451146e5a0701c92a01f7d18c1e61176a3
sha512
255b1dc5cd85daa10e2e74c6c2d52b2c7e5b6b99daac83936b2631f269fc6835e3e88cf7c486b28e59c54a0d9621d0028a18e84a0248a9375c6e532e4a265ae3
ripemd-160
9926e633af7cd99b0000f5a72d81005cd253f025
Diameter
41618026
Circumference
130746884.73851
Area
1.3603568121166E+15
Volume
3.7743576783963E+22
Surface area
5.4414272484663E+15
Circumference
130746884.73851
Perimeter
83236052
Area
433015022034169
Diagonal
29428388.404198
Surface area
2598090132205014
Volume
9.0106152227043E+21
Space diagonal
36042267.771361
Perimeter
62427039
Area
1.8750100465093E+14
Altitude
18021133.885681
Surface area
1.8750100465093E+14
Volume
1.0619111877728E+21
Height
9809462.8013994