20508909 (number)

20508909 is an odd 8-digits composite number following 20508908 and preceding 20508910. In scientific notation, it is written as 2.0508909 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 13659840 positive integers (up to 20508909) that are relatively prime to 20508909.

Interesting facts

Basic properties

Name

Name twenty million five hundred eight thousand nine hundred nine

Notation

Scientific notation 2.0508909 × 10^7
Engineering notation 2.0508909 × 10^6

Prime Factorization of 20508909

Prime Factorization 3 × 1361 × 5023

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20508909
Product of the distinct prime numbers

The prime factorization of 20508909 is 3 × 1361 × 5023. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 10, 45, 24, 203, 84, 2688, 6798, 85271, 70890, 539776, 356015, 817234, 3714583, 5596176, 29703518, 475967053, 91157711, 8258841790, 1274829386

Basic calculations (n = 20508909)

Multiplication

n×y
n×2 41017818
n×3 61526727
n×4 82035636
n×5 102544545

Division

n÷y
n÷2 10254454.5
n÷3 6836303
n÷3 5127227.25
n÷5 4101781.8

Exponentiation

ny
n2 420615348370281
n3 8.6263619037294E+21
n4 1.7691727128465E+29
n5 3.6283802173053E+36

Nth Root

y√n
2√n 4528.6762966677
3√n 273.72482452328
4√n 67.295440385421
5√n 28.999366560714

Divisors of 20508909

1, 3, 1361, 4083, 5023, 15069, 6836303, 20508909

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 -20508908
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 20508909 can be divided by 8 positive divisors. The sum of these divisors (counting 20508909) is 1, the average is 0.125.

Base conversion 20508909

Base System Value
2 Binary 1001110001111000011101101
3 Ternary 1102120221221020
4 Quaternary 1032033003231
5 Quinary 20222241114
6 Senary 2011324353
8 Octal 116170355
10 Decimal 20508909
12 Duodecimal 6a506b9
16 Hexadecimal 138f0ed
20 Vigesimal 683c59
36 Base36 c7krx

Cryptographic Hash Functions

md5 6489083a4d6fb953a85d0f3a53338706
sha1 1b2b00956d41564b9fb20f2ed9962d7407f9c004
sha256 19bcb114bb32f53db5c309636a1abc0a02db8269fd8cb54a86180aac413e0329
sha512 811cef4de344c00609eb30d4ffe61c021a1ae6c9f81520f756254ba16e96a2eb2a9e3c1ed6348d4802c770edba92cdc8689e28082822d6b75761a210682080e1
ripemd-160 a8c9f45dfb0328702d990a1a2a07be29d57a971c

20508909 as geometric shapes

Circle

Radius = n
Diameter 41017818
Circumference 128861275.69508
Area 1.3214020884272E+15

Sphere

Radius = n
Volume 3.6134020245284E+22
Surface area 5.2856083537087E+15
Circumference 128861275.69508

Square

Length = n
Perimeter 82035636
Area 420615348370281
Diagonal 29003977.257276

Cube

Length = n
Surface area 2523692090221686
Volume 8.6263619037294E+21
Space diagonal 35522472.395807

Equilateral Triangle

Length = n
Perimeter 61526727
Area 1.8213178845515E+14
Altitude 17761236.197903

Triangular Pyramid

Length = n
Surface area 1.8213178845515E+14
Volume 1.0166264998494E+21
Height 9667992.4190919