20405556 is an even 8-digits composite number following 20405555
and preceding 20405557 . In scientific notation, it is written as 2.0405556 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 6801840 positive integers (up to 20405556) that are relatively prime to 20405556.
20405556 has 18 divisors, whose sum is 51580802
The reverse of 20405556 is 65550402
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred five thousand five hundred fifty-six
Scientific notation
2.0405556 × 10^7
Engineering notation
2.0405556 × 10^6
Prime Factorization
2 × 2 × 3 × 3 × 566821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3400926
Product of the distinct prime numbers
The prime factorization of 20405556 is 2 × 2 × 3 × 3 × 566821.
Since it has a total of 5 prime factors.
6 , 6 , 37 , 63 , 399 , 806 , 53 , 5097 , 81540 , 24403 , 682703 , 439648 , 3653676 , 1260751 , 86636693 , 39237388 , 58532052 , 842630908 , 9679625256 , 4347640432
n×2
40811112
n×3
61216668
n×4
81622224
n×5
102027780
n÷2
10202778
n÷3
6801852
n÷3
5101389
n÷5
4081111.2
n2
416386715669136
n3
8.4966024442426E+21
n4
1.7337789698573E+29
n5
3.5378723861045E+36
2 √n
4517.2509339199
3 √n
273.26424521299
4 √n
67.210497200362
5 √n
28.970079469269
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 566821 , 1133642 , 1700463 , 2267284 , 3400926 , 5101389 , 6801852 , 10202778 , 20405556
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20405555
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20405556 can be divided by 18 positive divisors.
The sum of these divisors (counting 20405556) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1001101110101110100110100
3
Ternary
1102101201011100
4
Quaternary
1031311310310
5
Quinary
20210434211
6
Senary
2005210100
8
Octal
115656464
10
Decimal
20405556
12
Duodecimal
6a00930
16
Hexadecimal
1375d34
20
Vigesimal
67adhg
36
Base36
c5d10
md5
e33085303747c5231eb375049c99b744
sha1
527eb4d38b23654add90a1b9f1ee502bf3b8a353
sha256
48f9f89ff5476358d13781652f5ae535840da3722568194144e6adcd21916dac
sha512
423f8bdb73683670b22f44268db7e2f477c35243840d60dcd9ec8bddc25fa9ad7d660bb0e18b7567cd7ec8697c42a94dc4cd4b42ac63893afa2d33d1c64a1b94
ripemd-160
9095f1109fe0f920c62710ba1025dd83866b37db
Diameter
40811112
Circumference
128211889.64403
Area
1.3081174469985E+15
Volume
3.5590485092408E+22
Surface area
5.2324697879942E+15
Circumference
128211889.64403
Perimeter
81622224
Area
416386715669136
Diagonal
28857814.042964
Surface area
2498320294014816
Volume
8.4966024442426E+21
Space diagonal
35343459.748692
Perimeter
61216668
Area
1.8030073678392E+14
Altitude
17671729.874346
Surface area
1.8030073678392E+14
Volume
1.001334200895E+21
Height
9619271.3476546