20921660 (number)

20921660 is an even 8-digits composite number following 20921659 and preceding 20921661. In scientific notation, it is written as 2.0921660 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors. There are 7928064 positive integers (up to 20921660) that are relatively prime to 20921660.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921660 × 10^7
Engineering notation 2.0921660 × 10^6

Prime Factorization of 20921660

Prime Factorization 2 × 2 × 5 × 19 × 55057

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10460830
Product of the distinct prime numbers

The prime factorization of 20921660 is 2 × 2 × 5 × 19 × 55057. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 2, 4, 91, 622, 846, 4890, 5114, 52283, 3942, 695614, 2514, 1676092, 9386159, 14057390, 84519330, 855011496, 597874509, 7270838599, 963668293

Basic calculations (n = 20921660)

Multiplication

n×y
n×2 41843320
n×3 62764980
n×4 83686640
n×5 104608300

Division

n÷y
n÷2 10460830
n÷3 6973886.6666667
n÷3 5230415
n÷5 4184332

Exponentiation

ny
n2 437715857155600
n3 9.157742340018E+21
n4 1.9159517160546E+29
n5 4.0084890379711E+36

Nth Root

y√n
2√n 4574.0201136418
3√n 275.5489201152
4√n 67.631502376051
5√n 29.115163146196

Divisors of 20921660

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55057, 110114, 220228, 275285, 550570, 1046083, 1101140, 2092166, 4184332, 5230415, 10460830, 20921660

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921659
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921660 can be divided by 24 positive divisors. The sum of these divisors (counting 20921660) is 1, the average is 0.041666666666667.

Base conversion 20921660

Base System Value
2 Binary 1001111110011110100111100
3 Ternary 1110100221010022
4 Quaternary 1033303310330
5 Quinary 20323443120
6 Senary 2024231312
8 Octal 117636474
10 Decimal 20921660
12 Duodecimal 700b538
16 Hexadecimal 13f3d3c
20 Vigesimal 6af430
36 Base36 cgf98

Cryptographic Hash Functions

md5 c9d5f8530c89c73fb7ed48dff8174192
sha1 26e895f96118fa9f7e61c642354c326653e2771d
sha256 c47c765ea62555e368665308a57d9f91c46bdb7b8f68283a14c931ad2b8e6b60
sha512 4a81885eca6bc6df6bc17f04abe033f57a93aa45a0a67483b24d84c8b511834d04f015044a23826aaa56bdcd41c0fe5deab0c7af2c2e956d781f7234ef16b2aa
ripemd-160 4ed8dac0a261c4712213725b7f44f7bf2d605a5d

20921660 as geometric shapes

Circle

Radius = n
Diameter 41843320
Circumference 131454666.71381
Area 1.3751249211998E+15

Sphere

Radius = n
Volume 3.8359861411825E+22
Surface area 5.5004996847992E+15
Circumference 131454666.71381

Square

Length = n
Perimeter 83686640
Area 437715857155600
Diagonal 29587695.319359

Cube

Length = n
Surface area 2626295142933600
Volume 9.157742340018E+21
Space diagonal 36237378.098681

Equilateral Triangle

Length = n
Perimeter 62764980
Area 1.8953652596802E+14
Altitude 18118689.049341

Triangular Pyramid

Length = n
Surface area 1.8953652596802E+14
Volume 1.079250284831E+21
Height 9862565.1064529