20391386 is an even 8-digits composite number following 20391385
and preceding 20391387 . In scientific notation, it is written as 2.0391386 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 9752380 positive integers (up to 20391386) that are relatively prime to 20391386.
20391386 has 8 divisors, whose sum is 31917024
The reverse of 20391386 is 68319302
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million three hundred ninety-one thousand three hundred eighty-six
Scientific notation
2.0391386 × 10^7
Engineering notation
2.0391386 × 10^6
Prime Factorization
2 × 23 × 443291
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20391386
Product of the distinct prime numbers
The prime factorization of 20391386 is 2 × 23 × 443291.
Since it has a total of 3 prime factors.
6 , 6 , 9 , 50 , 824 , 626 , 163 , 4056 , 80364 , 77368 , 311155 , 751372 , 4952051 , 3963669 , 26655013 , 11060990 , 406339538 , 362788986 , 2081606386 , 9406087206
n×2
40782772
n×3
61174158
n×4
81565544
n×5
101956930
n÷2
10195693
n÷3
6797128.6666667
n÷3
5097846.5
n÷5
4078277.2
n2
415808623000996
n3
8.4789141337418E+21
n4
1.7289681096198E+29
n5
3.5256056104949E+36
2 √n
4515.6822297411
3 √n
273.20097729715
4 √n
67.198826103892
5 √n
28.966054878134
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
-20391385
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 20391386 can be divided by 8 positive divisors.
The sum of these divisors (counting 20391386) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110010010111011010
3
Ternary
1102100222201112
4
Quaternary
1031302113122
5
Quinary
20210011021
6
Senary
2005020322
8
Octal
115622732
10
Decimal
20391386
12
Duodecimal
69b46a2
16
Hexadecimal
13725da
20
Vigesimal
678i96
36
Base36
c523e
md5
20043e08fe80eb4f4ad4640a93ed16a0
sha1
0a6150da30b32af49ffff0e2a8fe3f50acf58fe6
sha256
ce234c67712494377efc44668ce04496900b33aee1fd407a07d3a83b2d855892
sha512
baf062479ff684abca47f6d938f06a094fdef07378395f760be7ebf3a22c2edd9fc3d675d36ecda64c1829001a9723d71025626dc80bd6bbe46bba1e070cc180
ripemd-160
1f25d74435c2d0e6ddcf87971896bdf6213c4a20
Diameter
40782772
Circumference
128122856.90823
Area
1.3063013153192E+15
Volume
3.5516392470642E+22
Surface area
5.2252052612769E+15
Circumference
128122856.90823
Perimeter
81565544
Area
415808623000996
Diagonal
28837774.636785
Surface area
2494851738005976
Volume
8.4789141337418E+21
Space diagonal
35318916.588749
Perimeter
61174158
Area
1.8005041531574E+14
Altitude
17659458.294374
Surface area
1.8005041531574E+14
Volume
9.9924961351121E+20
Height
9612591.545595