20805855 (number)

20805855 is an odd 8-digits composite number following 20805854 and preceding 20805856. In scientific notation, it is written as 2.0805855 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 9009792 positive integers (up to 20805855) that are relatively prime to 20805855.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand eight hundred fifty-five

Notation

Scientific notation 2.0805855 × 10^7
Engineering notation 2.0805855 × 10^6

Prime Factorization of 20805855

Prime Factorization 133 × 3 × 5 × 10429

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20805855
Product of the distinct prime numbers

The prime factorization of 20805855 is 133 × 3 × 5 × 10429. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 27, 39, 590, 680, 3629, 5466, 70648, 20360, 586274, 916644, 4971985, 5792965, 70910548, 59068045, 685770609, 582194240, 5432595095, 7878268307

Basic calculations (n = 20805855)

Multiplication

n×y
n×2 41611710
n×3 62417565
n×4 83223420
n×5 104029275

Division

n÷y
n÷2 10402927.5
n÷3 6935285
n÷3 5201463.75
n÷5 4161171

Exponentiation

ny
n2 432883602281025
n3 9.0065134609367E+21
n4 1.873882131238E+29
n5 3.8987719909628E+36

Nth Root

y√n
2√n 4561.3435520688
3√n 275.03957557158
4√n 67.53771947637
5√n 29.082860054637

Divisors of 20805855

1, 3, 5, 15, 133, 399, 665, 1995, 10429, 31287, 52145, 156435, 1387057, 4161171, 6935285, 20805855

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805854
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805855 can be divided by 16 positive divisors. The sum of these divisors (counting 20805855) is 1, the average is 0.0625.

Base conversion 20805855

Base System Value
2 Binary 1001111010111100011011111
3 Ternary 1110011001021020
4 Quaternary 1033113203133
5 Quinary 20311241410
6 Senary 2021535223
8 Octal 117274337
10 Decimal 20805855
12 Duodecimal 6b74513
16 Hexadecimal 13d78df
20 Vigesimal 6a0ecf
36 Base36 cdxwf

Cryptographic Hash Functions

md5 ba64d2ab931cf880440f96d33d8eadbd
sha1 49910b40892c6a8e480d0eee34e34161fbea70bf
sha256 335b9ca681bbfc60ef49252172224dc6aa7b7cef4d00e3029ac40e6ebfa11961
sha512 b98511716175b4c46d3c0a3db9163f9bb9d729a07725bc521521b6a0f6711187af26081057765699d022efaa20560b5bf58a7c4c0527c6c943384d9da738b61c
ripemd-160 a535b8d9f356a280796520e7c14f5a0806b3323d

20805855 as geometric shapes

Circle

Radius = n
Diameter 41611710
Circumference 130727042.43931
Area 1.3599439447856E+15

Sphere

Radius = n
Volume 3.7726395364448E+22
Surface area 5.4397757791422E+15
Circumference 130727042.43931

Square

Length = n
Perimeter 83223420
Area 432883602281025
Diagonal 29423922.317768

Cube

Length = n
Surface area 2597301613686150
Volume 9.0065134609367E+21
Space diagonal 36036797.954911

Equilateral Triangle

Length = n
Perimeter 62417565
Area 1.8744409822854E+14
Altitude 18018398.977455

Triangular Pyramid

Length = n
Surface area 1.8744409822854E+14
Volume 1.0614277905127E+21
Height 9807974.1059227