20561009 is an odd 8-digits composite number following 20561008
and preceding 20561010 . In scientific notation, it is written as 2.0561009 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 16985808 positive integers (up to 20561009) that are relatively prime to 20561009.
20561009 has 16 divisors, whose sum is 24364032
The reverse of 20561009 is 90016502
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million five hundred sixty-one thousand nine
Scientific notation
2.0561009 × 10^7
Engineering notation
2.0561009 × 10^6
Prime Factorization
7 × 43 × 83 × 823
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20561009
Product of the distinct prime numbers
The prime factorization of 20561009 is 7 × 43 × 83 × 823.
Since it has a total of 4 prime factors.
9 , 3 , 79 , 26 , 776 , 988 , 6508 , 859 , 90698 , 53649 , 782590 , 155191 , 9205355 , 3320504 , 5413620 , 13380575 , 72290679 , 757953001 , 9493849627 , 1033616739
n×2
41122018
n×3
61683027
n×4
82244036
n×5
102805045
n÷2
10280504.5
n÷3
6853669.6666667
n÷3
5140252.25
n÷5
4112201.8
n2
422755091098081
n3
8.6922712328635E+21
n4
1.7872186704935E+29
n5
3.6747019168984E+36
2 √n
4534.4248808421
3 √n
273.95641500421
4 √n
67.338138382659
5 √n
29.014085374627
1 , 7 , 43 , 83 , 301 , 581 , 823 , 3569 , 5761 , 24983 , 35389 , 68309 , 247723 , 478163 , 2937287 , 20561009
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
-20561008
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 20561009 can be divided by 16 positive divisors.
The sum of these divisors (counting 20561009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110011011110001110001
3
Ternary
1102200121101212
4
Quaternary
1032123301301
5
Quinary
20230423014
6
Senary
2012405505
8
Octal
116336161
10
Decimal
20561009
12
Duodecimal
6a76895
16
Hexadecimal
139bc71
20
Vigesimal
68a2a9
36
Base36
c8oz5
md5
c283701c5183778370b3aed5c04e6aa9
sha1
7434848e3ef693931159f424c400acb08819f937
sha256
132291a829c516daba1896894e40f754d832359ef08b549648b43d6d005d9ab5
sha512
5bb852f23dc14a9eeb9c49d13ceda48909212a32a44259989fc805781c248a35c1235e3d1b9e7fe850f88963878a05b17178c23289802a465a0a15c65e4c1239
ripemd-160
aed3d449638f1fea4f2d28aac21d97440e4fe2db
Diameter
41122018
Circumference
129188629.64959
Area
1.3281242884614E+15
Volume
3.6410100597565E+22
Surface area
5.3124971538457E+15
Circumference
129188629.64959
Perimeter
82244036
Area
422755091098081
Diagonal
29077657.783875
Surface area
2536530546588486
Volume
8.6922712328635E+21
Space diagonal
35612712.242881
Perimeter
61683027
Area
1.8305832423507E+14
Altitude
17806356.12144
Surface area
1.8305832423507E+14
Volume
1.0243939887784E+21
Height
9692552.5946251