20561409 is an odd 8-digits composite number following 20561408
and preceding 20561410 . In scientific notation, it is written as 2.0561409 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 12252240 positive integers (up to 20561409) that are relatively prime to 20561409.
20561409 has 24 divisors, whose sum is 30451200
The reverse of 20561409 is 90416502
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million five hundred sixty-one thousand four hundred nine
Scientific notation
2.0561409 × 10^7
Engineering notation
2.0561409 × 10^6
Prime Factorization
3 × 3 × 121 × 79 × 239
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6853803
Product of the distinct prime numbers
The prime factorization of 20561409 is 3 × 3 × 121 × 79 × 239.
Since it has a total of 5 prime factors.
6 , 2 , 39 , 96 , 752 , 131 , 3682 , 2700 , 3390 , 30979 , 267126 , 665196 , 4645011 , 3822235 , 6894876 , 87704461 , 940642100 , 493151948 , 213765479 , 266852178
n×2
41122818
n×3
61684227
n×4
82245636
n×5
102807045
n÷2
10280704.5
n÷3
6853803
n÷3
5140352.25
n÷5
4112281.8
n2
422771540065281
n3
8.6927785488421E+21
n4
1.7873577508917E+29
n5
3.6750593745404E+36
2 √n
4534.4689876545
3 √n
273.95819153596
4 √n
67.338465884325
5 √n
29.014198263482
1 , 3 , 9 , 79 , 121 , 237 , 239 , 363 , 711 , 717 , 1089 , 2151 , 9559 , 18881 , 28677 , 28919 , 56643 , 86031 , 86757 , 169929 , 260271 , 2284601 , 6853803 , 20561409
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20561408
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20561409 can be divided by 24 positive divisors.
The sum of these divisors (counting 20561409) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110011011111000000001
3
Ternary
1102200121221200
4
Quaternary
1032123320001
5
Quinary
20230431114
6
Senary
2012411413
8
Octal
116337001
10
Decimal
20561409
12
Duodecimal
6a76b69
16
Hexadecimal
139be01
20
Vigesimal
68a3a9
36
Base36
c8pa9
md5
2f1c9cf6e800f66fa51f0005f59cd0fb
sha1
53fd9a2c684d1c0df27b93fd4619db977124147c
sha256
cdf9f1e459cbdae1625c84b39df25802e323c2dfc460eb86568334d7233a6ea5
sha512
758c581a71832e9bbe16a71a539cc2e43f4b704a0b93785c04f91bbf9ea2242becb34235a9296c5aeb9cca63655aa8ab428f9df5eeb20168d57c82db33de450b
ripemd-160
0dfc043cdfff6c5cf32a2b9ccef1095341773b15
Diameter
41122818
Circumference
129191142.92371
Area
1.3281759644159E+15
Volume
3.6412225637767E+22
Surface area
5.3127038576637E+15
Circumference
129191142.92371
Perimeter
82245636
Area
422771540065281
Diagonal
29078223.4693
Surface area
2536629240391686
Volume
8.6927785488421E+21
Space diagonal
35613405.063204
Perimeter
61684227
Area
1.830654468468E+14
Altitude
17806702.531602
Surface area
1.830654468468E+14
Volume
1.0244537765399E+21
Height
9692741.1564334