20805920 (number)

20805920 is an even 8-digits composite number following 20805919 and preceding 20805921. In scientific notation, it is written as 2.0805920 × 10^7. The sum of its digits is 26. It has a total of 8 prime factors and 48 positive divisors. There are 8239104 positive integers (up to 20805920) that are relatively prime to 20805920.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand nine hundred twenty

Notation

Scientific notation 2.0805920 × 10^7
Engineering notation 2.0805920 × 10^6

Prime Factorization of 20805920

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 109 × 1193

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 1300370
Product of the distinct prime numbers

The prime factorization of 20805920 is 2 × 2 × 2 × 2 × 2 × 5 × 109 × 1193. Since it has a total of 8 prime factors.

Most popular turbo-numbers

10, 10, 51, 2, 614, 838, 1084, 6947, 17009, 84132, 41961, 793358, 5280565, 3552775, 86575984, 70445553, 40597616, 517018137, 3098168892, 3473722896

Basic calculations (n = 20805920)

Multiplication

n×y
n×2 41611840
n×3 62417760
n×4 83223680
n×5 104029600

Division

n÷y
n÷2 10402960
n÷3 6935306.6666667
n÷3 5201480
n÷5 4161184

Exponentiation

ny
n2 432886307046400
n3 9.0065978735028E+21
n4 1.8739055482827E+29
n5 3.8988328925126E+36

Nth Root

y√n
2√n 4561.3506771569
3√n 275.03986199021
4√n 67.537772225303
5√n 29.082878226287

Divisors of 20805920

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1193, 1744, 2180, 2386, 3488, 4360, 4772, 5965, 8720, 9544, 11930, 17440, 19088, 23860, 38176, 47720, 95440, 130037, 190880, 260074, 520148, 650185, 1040296, 1300370, 2080592, 2600740, 4161184, 5201480, 10402960, 20805920

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805920 can be divided by 48 positive divisors. The sum of these divisors (counting 20805920) is 1, the average is 0.020833333333333.

Base conversion 20805920

Base System Value
2 Binary 1001111010111100100100000
3 Ternary 1110011001100122
4 Quaternary 1033113210200
5 Quinary 20311242140
6 Senary 2021535412
8 Octal 117274440
10 Decimal 20805920
12 Duodecimal 6b74568
16 Hexadecimal 13d7920
20 Vigesimal 6a0eg0
36 Base36 cdxy8

Cryptographic Hash Functions

md5 5f02f013aed73d633a51a54a2e5c8a31
sha1 390a2a0e06eba08344c31d17fb796ae3c6f72674
sha256 38d07c0c054c3b45fac8e4811f6412bd23fd51a8287c3fc16f3f57b0378f48cc
sha512 f93848f6f2c759ac1e6205ca29e22577896676f6f5fe8f35857bad860f22532976174732dab529b7525425c37abf7818b930e0e97577d8cf6b9ae8c6bfa4475c
ripemd-160 fa478f67d1dffe608aafdb97a012ca9bd9d5e0a6

20805920 as geometric shapes

Circle

Radius = n
Diameter 41611840
Circumference 130727450.84635
Area 1.3599524420566E+15

Sphere

Radius = n
Volume 3.7726748950979E+22
Surface area 5.4398097682263E+15
Circumference 130727450.84635

Square

Length = n
Perimeter 83223680
Area 432886307046400
Diagonal 29424014.24165

Cube

Length = n
Surface area 2597317842278400
Volume 9.0065978735028E+21
Space diagonal 36036910.538213

Equilateral Triangle

Length = n
Perimeter 62417760
Area 1.8744526942631E+14
Altitude 18018455.269107

Triangular Pyramid

Length = n
Surface area 1.8744526942631E+14
Volume 1.061437738629E+21
Height 9808004.7472165