20385909 is an odd 8-digits composite number following 20385908
and preceding 20385910 . In scientific notation, it is written as 2.0385909 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13590600 positive integers (up to 20385909) that are relatively prime to 20385909.
20385909 has 4 divisors, whose sum is 22651020
The reverse of 20385909 is 90958302
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million three hundred eighty-five thousand nine hundred nine
Scientific notation
2.0385909 × 10^7
Engineering notation
2.0385909 × 10^6
Prime Factorization
9 × 2265101
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20385909
Product of the distinct prime numbers
The prime factorization of 20385909 is 9 × 2265101.
Since it has a total of 2 prime factors.
5 , 6 , 6 , 1 , 594 , 134 , 3504 , 1110 , 75923 , 20210 , 261908 , 818096 , 8508150 , 7829118 , 30953601 , 15280551 , 293170615 , 595096705 , 5114949920 , 3862424140
n×2
40771818
n×3
61157727
n×4
81543636
n×5
101929545
n÷2
10192954.5
n÷3
6795303
n÷3
5096477.25
n÷5
4077181.8
n2
415585285756281
n3
8.4720838171665E+21
n4
1.7271112973713E+29
n5
3.5208733741083E+36
2 √n
4515.0757468729
3 √n
273.17651507667
4 √n
67.194313352195
5 √n
28.964498690341
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
-20385908
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 20385909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20385909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110001000001110101
3
Ternary
1102100201012200
4
Quaternary
1031301001311
5
Quinary
20204322114
6
Senary
2004535113
8
Octal
115610165
10
Decimal
20385909
12
Duodecimal
69b1499
16
Hexadecimal
1371075
20
Vigesimal
6784f9
36
Base36
c4xv9
md5
6df0698ca02d63f9072de8b4cef5c4d7
sha1
403890064c4bacb445299464b635ba388b83afb2
sha256
28b5aa5887e9df6cafa3e1b1274ae35f6947e259fc9982717d327d7d59a91a86
sha512
ce1171ad5975c479368bcce3eb5140062b8386b421e8a5c19408039b742456f9397dcea761cb965fe676890cb91036db9a4a64c74e8b0ae7750bb51cf02101e5
ripemd-160
f8918fdca54761b5119290ac31e3759c72289dd3
Diameter
40771818
Circumference
128088443.9023
Area
1.3055996806719E+15
Volume
3.5487781707477E+22
Surface area
5.2223987226878E+15
Circumference
128088443.9023
Perimeter
81543636
Area
415585285756281
Diagonal
28830028.989104
Surface area
2493511714537686
Volume
8.4720838171665E+21
Space diagonal
35309430.146476
Perimeter
61157727
Area
1.7995370745198E+14
Altitude
17654715.073238
Surface area
1.7995370745198E+14
Volume
9.9844465298321E+20
Height
9610009.6630346