20020781 (number)

20020781 is an odd 8-digits composite number following 20020780 and preceding 20020782. In scientific notation, it is written as 2.0020781 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors. There are 17128320 positive integers (up to 20020781) that are relatively prime to 20020781.

Interesting facts

Basic properties

Name

Name twenty million twenty thousand seven hundred eighty-one

Notation

Scientific notation 2.0020781 × 10^7
Engineering notation 2.0020781 × 10^6

Prime Factorization of 20020781

Prime Factorization 11 × 17 × 11 × 9733

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1820071
Product of the distinct prime numbers

The prime factorization of 20020781 is 11 × 17 × 11 × 9733. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 18, 41, 247, 88, 4202, 1933, 18992, 85872, 58173, 466756, 4609503, 5321327, 1170716, 23053218, 279876250, 547371477, 9547684651, 4820667459

Basic calculations (n = 20020781)

Multiplication

n×y
n×2 40041562
n×3 60062343
n×4 80083124
n×5 100103905

Division

n÷y
n÷2 10010390.5
n÷3 6673593.6666667
n÷3 5005195.25
n÷5 4004156.2

Exponentiation

ny
n2 400831671849961
n3 8.0249631199719E+21
n4 1.6066602915803E+29
n5 3.2166593839126E+36

Nth Root

y√n
2√n 4474.4587382163
3√n 271.53574297073
4√n 66.891395098445
5√n 28.859991776926

Divisors of 20020781

1, 11, 17, 121, 187, 2057, 9733, 107063, 165461, 1177693, 1820071, 20020781

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20020780
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20020781 can be divided by 12 positive divisors. The sum of these divisors (counting 20020781) is 1, the average is 0.083333333333333.

Base conversion 20020781

Base System Value
2 Binary 1001100010111111000101101
3 Ternary 1101200011100102
4 Quaternary 1030113320231
5 Quinary 20111131111
6 Senary 1553040445
8 Octal 114277055
10 Decimal 20020781
12 Duodecimal 6856125
16 Hexadecimal 1317e2d
20 Vigesimal 652bj1
36 Base36 bx44t

Cryptographic Hash Functions

md5 a7164fc8f6fbfa209cfa1f51f9785fad
sha1 50189381a918c8edc5916435b4c70b536131a0f6
sha256 21bc1f518fa8c28a604733e07d47382432c183b2770f4c471d3790f7a9fe411b
sha512 0b933be05f03eb258ec1556f820d87e11d60d02e8c56406c1e3ca3a900dd14fccfa04313fe6b037cec1cb9b5504f8b0dedb82d7a9b4d69f49700f4b4bb251c8f
ripemd-160 d09df22a344be6879d032e61a07c0f1fb6467f45

20020781 as geometric shapes

Circle

Radius = n
Diameter 40041562
Circumference 125794277.01746
Area 1.25924983561E+15

Sphere

Radius = n
Volume 3.361488691071E+22
Surface area 5.0369993424398E+15
Circumference 125794277.01746

Square

Length = n
Perimeter 80083124
Area 400831671849961
Diagonal 28313660.019502

Cube

Length = n
Surface area 2404990031099766
Volume 8.0249631199719E+21
Space diagonal 34677009.89921

Equilateral Triangle

Length = n
Perimeter 60062343
Area 1.7356520523173E+14
Altitude 17338504.949605

Triangular Pyramid

Length = n
Surface area 1.7356520523173E+14
Volume 9.4575097348402E+20
Height 9437886.6731672