20805540 (number)

20805540 is an even 8-digits composite number following 20805539 and preceding 20805541. In scientific notation, it is written as 2.0805540 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 4755456 positive integers (up to 20805540) that are relatively prime to 20805540.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand five hundred forty

Notation

Scientific notation 2.0805540 × 10^7
Engineering notation 2.0805540 × 10^6

Prime Factorization of 20805540

Prime Factorization 2 × 2 × 15 × 7 × 49537

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10402770
Product of the distinct prime numbers

The prime factorization of 20805540 is 2 × 2 × 15 × 7 × 49537. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 7, 100, 35, 557, 437, 5947, 3219, 17230, 33340, 865443, 747193, 2030101, 2276872, 56538399, 86553513, 655001885, 155577065, 6656541825, 4308534123

Basic calculations (n = 20805540)

Multiplication

n×y
n×2 41611080
n×3 62416620
n×4 83222160
n×5 104027700

Division

n÷y
n÷2 10402770
n÷3 6935180
n÷3 5201385
n÷5 4161108

Exponentiation

ny
n2 432870494691600
n3 9.0061043921259E+21
n4 1.8737686517455E+29
n5 3.8984768634637E+36

Nth Root

y√n
2√n 4561.3090226381
3√n 275.03818753436
4√n 67.537463845174
5√n 29.082771991384

Divisors of 20805540

1, 2, 4, 7, 14, 15, 28, 30, 60, 105, 210, 420, 49537, 99074, 198148, 346759, 693518, 743055, 1387036, 1486110, 2972220, 5201385, 10402770, 20805540

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 -20805539
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 20805540 can be divided by 24 positive divisors. The sum of these divisors (counting 20805540) is 1, the average is 0.041666666666667.

Base conversion 20805540

Base System Value
2 Binary 1001111010111011110100100
3 Ternary 1110011000211120
4 Quaternary 1033113132210
5 Quinary 20311234130
6 Senary 2021533540
8 Octal 117273644
10 Decimal 20805540
12 Duodecimal 6b742b0
16 Hexadecimal 13d77a4
20 Vigesimal 6a0dh0
36 Base36 cdxno

Cryptographic Hash Functions

md5 b9b6e277c0be47ec3c9e8e9912400c45
sha1 3fb5ec8b3f42a46836aac0200784f048cfbb688d
sha256 aac1dbbf5579b215ff666d28d75b339d01ad2a0a43d61e8e734db315e71a1676
sha512 843b1aa5b56d6c010f9797da1d039c75da64852eade160b572027d28f49f15edbb84318f48e5dfe11faa90859266185717264898480dc82f4c23031d2a9b52bb
ripemd-160 59a3bf4d10d7b2d8776699d205c4caf56a8481ac

20805540 as geometric shapes

Circle

Radius = n
Diameter 41611080
Circumference 130725063.23594
Area 1.3599027660789E+15

Sphere

Radius = n
Volume 3.7724681861021E+22
Surface area 5.4396110643156E+15
Circumference 130725063.23594

Square

Length = n
Perimeter 83222160
Area 432870494691600
Diagonal 29423476.840496

Cube

Length = n
Surface area 2597222968149600
Volume 9.0061043921259E+21
Space diagonal 36036252.358907

Equilateral Triangle

Length = n
Perimeter 62416620
Area 1.8743842247583E+14
Altitude 18018126.179453

Triangular Pyramid

Length = n
Surface area 1.8743842247583E+14
Volume 1.061379581291E+21
Height 9807825.6134986