20805625 (number)

20805625 is an odd 8-digits composite number following 20805624 and preceding 20805626. In scientific notation, it is written as 2.0805625 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 10 positive divisors. There are 16644000 positive integers (up to 20805625) that are relatively prime to 20805625.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0805625 × 10^7
Engineering notation 2.0805625 × 10^6

Prime Factorization of 20805625

Prime Factorization 25 × 5 × 5 × 33289

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 4161125
Product of the distinct prime numbers

The prime factorization of 20805625 is 25 × 5 × 5 × 33289. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20805625)

Multiplication

n×y
n×2 41611250
n×3 62416875
n×4 83222500
n×5 104028125

Division

n÷y
n÷2 10402812.5
n÷3 6935208.3333333
n÷3 5201406.25
n÷5 4161125

Exponentiation

ny
n2 432874031640625
n3 9.006214774553E+21
n4 1.8737992726881E+29
n5 3.8985564992821E+36

Nth Root

y√n
2√n 4561.3183401293
3√n 275.03856208546
4√n 67.537532825306
5√n 29.082795754589

Divisors of 20805625

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805624
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805625 can be divided by 10 positive divisors. The sum of these divisors (counting 20805625) is 1, the average is 0.1.

Base conversion 20805625

Base System Value
2 Binary 1001111010111011111111001
3 Ternary 1110011000221201
4 Quaternary 1033113133321
5 Quinary 20311240000
6 Senary 2021534201
8 Octal 117273771
10 Decimal 20805625
12 Duodecimal 6b74361
16 Hexadecimal 13d77f9
20 Vigesimal 6a0e15
36 Base36 cdxq1

Cryptographic Hash Functions

md5 9d682c1dec9cda962a4127b719fd411e
sha1 b77cbe545102124dbecead4143870ccb7c388feb
sha256 4b42245c9752b89de632515898c9009ba11c3907b32851b9b53787f61e4cef4c
sha512 9ba90713807a5c57ac7101e78eeee42b17c19c7cbf5a120a5a5de1ef0b4913fa75d4e653f1ff35b093e4eac751f29f6de2d92580d1cd38f96678d5bbb162b4c1
ripemd-160 9c4a0c94f7d6c13608e57caddba2a67d22263b6d

20805625 as geometric shapes

Circle

Radius = n
Diameter 41611250
Circumference 130725597.30669
Area 1.359913877732E+15

Sphere

Radius = n
Volume 3.772514422985E+22
Surface area 5.4396555109279E+15
Circumference 130725597.30669

Square

Length = n
Perimeter 83222500
Area 432874031640625
Diagonal 29423597.048649

Cube

Length = n
Surface area 2597244189843750
Volume 9.006214774553E+21
Space diagonal 36036399.583225

Equilateral Triangle

Length = n
Perimeter 62416875
Area 1.8743995401969E+14
Altitude 18018199.791613

Triangular Pyramid

Length = n
Surface area 1.8743995401969E+14
Volume 1.0613925899848E+21
Height 9807865.6828829