20765209 is an odd 8-digits composite number following 20765208
and preceding 20765210 . In scientific notation, it is written as 2.0765209 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20711440 positive integers (up to 20765209) that are relatively prime to 20765209.
20765209 has 4 divisors, whose sum is 20818980
The reverse of 20765209 is 90256702
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million seven hundred sixty-five thousand two hundred nine
Scientific notation
2.0765209 × 10^7
Engineering notation
2.0765209 × 10^6
Prime Factorization
389 × 53381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20765209
Product of the distinct prime numbers
The prime factorization of 20765209 is 389 × 53381.
Since it has a total of 2 prime factors.
7 , 6 , 47 , 87 , 588 , 864 , 2015 , 8593 , 48330 , 69174 , 10989 , 789949 , 8052265 , 3918541 , 65137879 , 51471101 , 933223608 , 25208589 , 7348150207 , 6185702383
n×2
41530418
n×3
62295627
n×4
83060836
n×5
103826045
n÷2
10382604.5
n÷3
6921736.3333333
n÷3
5191302.25
n÷5
4153041.8
n2
431193904813681
n3
8.9538315529822E+21
n4
1.8592818354847E+29
n5
3.8608375903743E+36
2 √n
4556.8858884111
3 √n
274.86035444406
4 √n
67.504710120191
5 √n
29.071487998565
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
-20765208
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 20765209 can be divided by 4 positive divisors.
The sum of these divisors (counting 20765209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111001101101000011001
3
Ternary
1110001222111211
4
Quaternary
1033031220121
5
Quinary
20303441314
6
Senary
2021023121
8
Octal
117155031
10
Decimal
20765209
12
Duodecimal
6b54aa1
16
Hexadecimal
13cda19
20
Vigesimal
69fd09
36
Base36
cd2jd
md5
607c8c1711797495df90f6bf36bd9cc4
sha1
4372d15b2c659b9eb9bdcee6d026bfc57b57e0ef
sha256
dbd3702b99ba7f3c415dc5bbfc60987561d6ce1c45a1111e8dfc17614e6cc297
sha512
c3d2328fd359f8ef8d66bf8e10c85f0753e2b89d7c6dd49fe297dea2ccd8b5559abadd41fdd29eddda230032e62931eb7e13f5a0cdabf53af8e5dba61200e3a1
ripemd-160
b46cca5f0f53cd5a5bc25bcd7b59cb93abfbc85d
Diameter
41530418
Circumference
130471656.08931
Area
1.3546356036354E+15
Volume
3.7505721904439E+22
Surface area
5.4185424145414E+15
Circumference
130471656.08931
Perimeter
83060836
Area
431193904813681
Diagonal
29366440.193312
Surface area
2587163428882086
Volume
8.9538315529822E+21
Space diagonal
35966397.017787
Perimeter
62295627
Area
1.8671243776283E+14
Altitude
17983198.508893
Surface area
1.8671243776283E+14
Volume
1.0552191681193E+21
Height
9788813.3977706