20545821 (number)

20545821 is an odd 8-digits composite number following 20545820 and preceding 20545822. In scientific notation, it is written as 2.0545821 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 12725856 positive integers (up to 20545821) that are relatively prime to 20545821.

Interesting facts

Basic properties

Name

Name twenty million five hundred forty-five thousand eight hundred twenty-one

Notation

Scientific notation 2.0545821 × 10^7
Engineering notation 2.0545821 × 10^6

Prime Factorization of 20545821

Prime Factorization 9 × 19 × 53 × 2267

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20545821
Product of the distinct prime numbers

The prime factorization of 20545821 is 9 × 19 × 53 × 2267. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 12, 58, 662, 596, 6426, 8621, 8872, 25604, 482057, 167777, 5912097, 3688072, 45078783, 94214226, 57832532, 296365637, 5589479770, 1852012788

Basic calculations (n = 20545821)

Multiplication

n×y
n×2 41091642
n×3 61637463
n×4 82183284
n×5 102729105

Division

n÷y
n÷2 10272910.5
n÷3 6848607
n÷3 5136455.25
n÷5 4109164.2

Exponentiation

ny
n2 422130760564041
n3 8.6730230451426E+21
n4 1.7819437901438E+29
n5 3.6611498144355E+36

Nth Root

y√n
2√n 4532.7498276433
3√n 273.88894304043
4√n 67.325699607529
5√n 29.009797684361

Divisors of 20545821

1, 9, 19, 53, 171, 477, 1007, 2267, 9063, 20403, 43073, 120151, 387657, 1081359, 2282869, 20545821

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 -20545820
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 20545821 can be divided by 16 positive divisors. The sum of these divisors (counting 20545821) is 1, the average is 0.0625.

Base conversion 20545821

Base System Value
2 Binary 1001110011000000100011101
3 Ternary 1102122211120100
4 Quaternary 1032120010131
5 Quinary 20224431241
6 Senary 2012211313
8 Octal 116300435
10 Decimal 20545821
12 Duodecimal 6a69b39
16 Hexadecimal 139811d
20 Vigesimal 6884b1
36 Base36 c8d99

Cryptographic Hash Functions

md5 eb569da4758d463a1ff9e5bd1f940517
sha1 d95668153bea8915a6c56abd9c3d52ace5918928
sha256 99dfa8027e5ee8bce83dbdd5726896de9694ae9eb6144b3f22dfc95530c32c21
sha512 27dd81c17c92dbd6dda50e9eabee8067939ad5d531b9d85f32736e49cce0e50a116f8b0a4102f4a3ae9528da778a9e2faf5a236612d9cedb0a6f0ac13ee0ea62
ripemd-160 b8ff865548039023811cc9b98c1b75aa3ad3613b

20545821 as geometric shapes

Circle

Radius = n
Diameter 41091642
Circumference 129093200.63114
Area 1.3261628962423E+15

Sphere

Radius = n
Volume 3.632947397738E+22
Surface area 5.3046515849691E+15
Circumference 129093200.63114

Square

Length = n
Perimeter 82183284
Area 422130760564041
Diagonal 29056178.70829

Cube

Length = n
Surface area 2532784563384246
Volume 8.6730230451426E+21
Space diagonal 35586405.855216

Equilateral Triangle

Length = n
Perimeter 61637463
Area 1.8278798118365E+14
Altitude 17793202.927608

Triangular Pyramid

Length = n
Surface area 1.8278798118365E+14
Volume 1.0221255681013E+21
Height 9685392.9027633