20565 (number)

20565 is an odd 5-digits composite number following 20564 and preceding 20566. In scientific notation, it is written as 2.0565 × 10^4. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 10944 positive integers (up to 20565) that are relatively prime to 20565.

Interesting facts

Basic properties

Name

Name twenty thousand five hundred sixty-five

Notation

Scientific notation 2.0565 × 10^4
Engineering notation 2.0565 × 10^3

Prime Factorization of 20565

Prime Factorization 5 × 9 × 457

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20565
Product of the distinct prime numbers

The prime factorization of 20565 is 5 × 9 × 457. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 2, 63, 42, 76, 371, 3462, 6678, 67037, 90259, 765002, 539837, 3040436, 7295991, 62320262, 44937896, 696341727, 510912841, 9723427025, 4611636083

Basic calculations (n = 20565)

Multiplication

n×y
n×2 41130
n×3 61695
n×4 82260
n×5 102825

Division

n÷y
n÷2 10282.5
n÷3 6855
n÷3 5141.25
n÷5 4113

Exponentiation

ny
n2 422919225
n3 8697333862125
n4 178860670874600625
n5 3.6782696965362E+21

Nth Root

y√n
2√n 143.40502083261
3√n 27.397413931787
4√n 11.975183540665
5√n 7.2882916437204

Divisors of 20565

1, 5, 9, 45, 457, 2285, 4113, 20565

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 -20564
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 20565 can be divided by 8 positive divisors. The sum of these divisors (counting 20565) is 1, the average is 0.125.

Base conversion 20565

Base System Value
2 Binary 101000001010101
3 Ternary 1001012200
4 Quaternary 11001111
5 Quinary 1124230
6 Senary 235113
8 Octal 50125
10 Decimal 20565
12 Duodecimal ba99
16 Hexadecimal 5055
20 Vigesimal 2b85
36 Base36 fv9

Cryptographic Hash Functions

md5 0832f3473e5c452694a193e668e38ad1
sha1 54b22aa7fad4f65ab9a7e59a6773a8482fd1c1a1
sha256 8b753cc1d276a2ed28d3cff879b88641914102584c1bb0f2c9c22cbb2af267f6
sha512 768ecdb398c763c2d575ec8d376d736a4434aab28f460aa35a3fdbbfa81775912dd4d0baa2f5163598219939ae6f97634fac7751cc6bf848036bc1a48a9706a4
ripemd-160 adf0de9bc2d730f0b0b37cf15f195df77f0c5965

20565 as geometric shapes

Circle

Radius = n
Diameter 41130
Circumference 129213.70584215
Area 1328639930.3219

Sphere

Radius = n
Volume 36431306889426
Surface area 5314559721.2876
Circumference 129213.70584215

Square

Length = n
Perimeter 82260
Area 422919225
Diagonal 29083.301910203

Cube

Length = n
Surface area 2537515350
Volume 8697333862125
Space diagonal 35619.624857654

Equilateral Triangle

Length = n
Perimeter 61695
Area 183129396.29941
Altitude 17809.812428827

Triangular Pyramid

Length = n
Surface area 183129396.29941
Volume 1024990625358.7
Height 9694.4339700676