20021661 (number)

20021661 is an odd 8-digits composite number following 20021660 and preceding 20021662. In scientific notation, it is written as 2.0021661 × 10^7. The sum of its digits is 18. It has a total of 6 prime factors and 20 positive divisors. There are 11594880 positive integers (up to 20021661) that are relatively prime to 20021661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0021661 × 10^7
Engineering notation 2.0021661 × 10^6

Prime Factorization of 20021661

Prime Factorization 3 × 3 × 3 × 3 × 253 × 977

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 741543
Product of the distinct prime numbers

The prime factorization of 20021661 is 3 × 3 × 3 × 3 × 253 × 977. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20021661)

Multiplication

n×y
n×2 40043322
n×3 60064983
n×4 80086644
n×5 100108305

Division

n÷y
n÷2 10010830.5
n÷3 6673887
n÷3 5005415.25
n÷5 4004332.2

Exponentiation

ny
n2 400866909198921
n3 8.0260213620986E+21
n4 1.606942788907E+29
n5 3.217366376589E+36

Nth Root

y√n
2√n 4474.557073052
3√n 271.53972130292
4√n 66.892130127931
5√n 28.860245476782

Divisors of 20021661

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20021660
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20021661 can be divided by 20 positive divisors. The sum of these divisors (counting 20021661) is 1, the average is 0.05.

Base conversion 20021661

Base System Value
2 Binary 1001100011000000110011101
3 Ternary 1101200012120000
4 Quaternary 1030120012131
5 Quinary 20111143121
6 Senary 1553044513
8 Octal 114300635
10 Decimal 20021661
12 Duodecimal 6856739
16 Hexadecimal 131819d
20 Vigesimal 652e31
36 Base36 bx4t9

Cryptographic Hash Functions

md5 6529abb3a2abc587fe0c2bfbd613fb70
sha1 a6cbe8745fba756a29589e3fc4e92a83b9b7c16c
sha256 09ea4e43a1784a45a6aaae33b94a5d10d3802f20aa0fdbec9db47eab89a521a1
sha512 e93c2c4ba518d10f59b398c7244821bf8dddfc8164062a4ea4ef543ad9ef1e129de029d934063c92d918c5f08d367eecaf7e71ab0daca4fc58d9e1cf7e732ef2
ripemd-160 ce57d8a1de35fe5b5acdea96706104cc84a36a8e

20021661 as geometric shapes

Circle

Radius = n
Diameter 40043322
Circumference 125799806.22053
Area 1.2593605370066E+15

Sphere

Radius = n
Volume 3.3619319664965E+22
Surface area 5.0374421480263E+15
Circumference 125799806.22053

Square

Length = n
Perimeter 80086644
Area 400866909198921
Diagonal 28314904.527436

Cube

Length = n
Surface area 2405201455193526
Volume 8.0260213620986E+21
Space diagonal 34678534.10392

Equilateral Triangle

Length = n
Perimeter 60064983
Area 1.7358046345141E+14
Altitude 17339267.05196

Triangular Pyramid

Length = n
Surface area 1.7358046345141E+14
Volume 9.4587568851467E+20
Height 9438301.5091455