20421718 is an even 8-digits composite number following 20421717
and preceding 20421719 . In scientific notation, it is written as 2.0421718 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10210858 positive integers (up to 20421718) that are relatively prime to 20421718.
20421718 has 4 divisors, whose sum is 30632580
The reverse of 20421718 is 81712402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred twenty-one thousand seven hundred eighteen
Scientific notation
2.0421718 × 10^7
Engineering notation
2.0421718 × 10^6
Prime Factorization
2 × 10210859
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20421718
Product of the distinct prime numbers
The prime factorization of 20421718 is 2 × 10210859.
Since it has a total of 2 prime factors.
5 , 9 , 14 , 93 , 162 , 796 , 3579 , 4342 , 11002 , 52037 , 971210 , 489964 , 1126954 , 3661186 , 96692195 , 87808961 , 992805130 , 778000472 , 6078125781 , 5047349399
n×2
40843436
n×3
61265154
n×4
81686872
n×5
102108590
n÷2
10210859
n÷3
6807239.3333333
n÷3
5105429.5
n÷5
4084343.6
n2
417046566071524
n3
8.516807365181E+21
n4
1.7392783827205E+29
n5
3.5519052655414E+36
2 √n
4519.0394997167
3 √n
273.33637150434
4 √n
67.223801586319
5 √n
28.974667103707
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20421717
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20421718 can be divided by 4 positive divisors.
The sum of these divisors (counting 20421718) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111001110001010110
3
Ternary
1102102112022221
4
Quaternary
1031321301112
5
Quinary
20211443333
6
Senary
2005412554
8
Octal
115716126
10
Decimal
20421718
12
Duodecimal
6a0a15a
16
Hexadecimal
1379c56
20
Vigesimal
67ce5i
36
Base36
c5phy
md5
905c3f5c9fc674acde8675639619e8af
sha1
cbd03556f4b596e515ca19a8be5940000f78c2e7
sha256
f44d571340e535da1032c34ff10088e40cc82652a8aa3a9269902fce4822f1a9
sha512
4546eb43818105f9dc4e93d725de09161b93d08dfbccfaf3eb4b0dc438da09f949e2c28f76f2bf35decd70d01d407e4db7f21d3c30bc29012e85152e0f4713f1
ripemd-160
71484165f10c0309f14951486a3a9a55f8f3c943
Diameter
40843436
Circumference
128313438.48496
Area
1.3101904281752E+15
Volume
3.5675119267323E+22
Surface area
5.2407617127006E+15
Circumference
128313438.48496
Perimeter
81686872
Area
417046566071524
Diagonal
28880670.562559
Surface area
2502279396429144
Volume
8.516807365181E+21
Space diagonal
35371453.153844
Perimeter
61265154
Area
1.805864603895E+14
Altitude
17685726.576922
Surface area
1.805864603895E+14
Volume
1.0037153736632E+21
Height
9626890.1875196