20686021 (number)

20686021 is an odd 8-digits composite number following 20686020 and preceding 20686022. In scientific notation, it is written as 2.0686021 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 19968960 positive integers (up to 20686021) that are relatively prime to 20686021.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-six thousand twenty-one

Notation

Scientific notation 2.0686021 × 10^7
Engineering notation 2.0686021 × 10^6

Prime Factorization of 20686021

Prime Factorization 31 × 683 × 977

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20686021
Product of the distinct prime numbers

The prime factorization of 20686021 is 31 × 683 × 977. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20686021)

Multiplication

n×y
n×2 41372042
n×3 62058063
n×4 82744084
n×5 103430105

Division

n÷y
n÷2 10343010.5
n÷3 6895340.3333333
n÷3 5171505.25
n÷5 4137204.2

Exponentiation

ny
n2 427911464812441
n3 8.8517855472509E+21
n4 1.8310822171793E+29
n5 3.7877805197297E+36

Nth Root

y√n
2√n 4548.1887603748
3√n 274.51051659382
4√n 67.440260678432
5√n 29.049281309619

Divisors of 20686021

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 -20686020
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 20686021 can be divided by 8 positive divisors. The sum of these divisors (counting 20686021) is 1, the average is 0.125.

Base conversion 20686021

Base System Value
2 Binary 1001110111010010011000101
3 Ternary 1102220221212221
4 Quaternary 1032322103011
5 Quinary 20243423041
6 Senary 2015212341
8 Octal 116722305
10 Decimal 20686021
12 Duodecimal 6b170b1
16 Hexadecimal 13ba4c5
20 Vigesimal 695f11
36 Base36 cbdfp

Cryptographic Hash Functions

md5 f835d5064fbdf950887b6980417e36b1
sha1 b96be96cdd8fb1c83006fa5971f81449bde2f1ba
sha256 53ac16679669cb55d27de54119b6ef110bcbcfa88e8541892ab29ebe3c13ebf7
sha512 907746518aef0cd6e0e5cc5a3a0811660b4ea164e8392b8723b6a325e1976abb680808e9635e91959426ad5374e858508e8de2a87c1758527f8fa5ae65c25ce0
ripemd-160 a95e2cc244f73994c00ef5008b1ab2ac5e861a89

20686021 as geometric shapes

Circle

Radius = n
Diameter 41372042
Circumference 129974103.21121
Area 1.3443235142416E+15

Sphere

Radius = n
Volume 3.7078272595194E+22
Surface area 5.3772940569664E+15
Circumference 129974103.21121

Square

Length = n
Perimeter 82744084
Area 427911464812441
Diagonal 29254451.449735

Cube

Length = n
Surface area 2567468788874646
Volume 8.8517855472509E+21
Space diagonal 35829239.378437

Equilateral Triangle

Length = n
Perimeter 62058063
Area 1.8529109954909E+14
Altitude 17914619.689218

Triangular Pyramid

Length = n
Surface area 1.8529109954909E+14
Volume 1.0431929310117E+21
Height 9751483.8165782