18540081 (number)

18540081 is an odd 8-digits composite number following 18540080 and preceding 18540082. In scientific notation, it is written as 1.8540081 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 9967104 positive integers (up to 18540081) that are relatively prime to 18540081.

Interesting facts

Basic properties

Name

Name eighteen million five hundred forty thousand eighty-one

Notation

Scientific notation 1.8540081 × 10^7
Engineering notation 1.8540081 × 10^6

Prime Factorization of 18540081

Prime Factorization 9 × 7 × 7 × 17 × 2473

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2648583
Product of the distinct prime numbers

The prime factorization of 18540081 is 9 × 7 × 7 × 17 × 2473. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 1, 87, 48, 155, 794, 3287, 3360, 78589, 50838, 516043, 58205, 9643615, 6602320, 2025885, 88771320, 17868304, 172068514, 7398250460, 8512993254

Basic calculations (n = 18540081)

Multiplication

n×y
n×2 37080162
n×3 55620243
n×4 74160324
n×5 92700405

Division

n÷y
n÷2 9270040.5
n÷3 6180027
n÷3 4635020.25
n÷5 3708016.2

Exponentiation

ny
n2 343734603486561
n3 6.3728673911437E+21
n4 1.1815347763406E+29
n5 2.1905750457672E+36

Nth Root

y√n
2√n 4305.8194342076
3√n 264.66948708327
4√n 65.618743009963
5√n 28.419885602226

Divisors of 18540081

1, 7, 9, 17, 49, 63, 119, 153, 441, 833, 1071, 2473, 7497, 17311, 22257, 42041, 121177, 155799, 294287, 378369, 1090593, 2060009, 2648583, 18540081

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 -18540080
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 18540081 can be divided by 24 positive divisors. The sum of these divisors (counting 18540081) is 1, the average is 0.041666666666667.

Base conversion 18540081

Base System Value
2 Binary 1000110101110011000110001
3 Ternary 1021212221012200
4 Quaternary 1012232120301
5 Quinary 14221240311
6 Senary 1501213413
8 Octal 106563061
10 Decimal 18540081
12 Duodecimal 6261269
16 Hexadecimal 11ae631
20 Vigesimal 5fha41
36 Base36 b1dm9

Cryptographic Hash Functions

md5 90d4e43b129664879dd213c191745143
sha1 85ba5025bcef9ac30bfad9ab6ef31386f97a37a9
sha256 dd08c6e49c5a0ae024c78817a5e99c663702721f51dc0879acf17dc915daea22
sha512 f26251e0cfeff510ee246ec627592efcbe0d01d8715e73ece7ebcdf9516b86be8af9cd5aa4e19f4e1cbedc2ec6688cae373c85c6c161e025a7e49a66d0465f78
ripemd-160 dd9577637d5727ae007532ae840d331e95965a21

18540081 as geometric shapes

Circle

Radius = n
Diameter 37080162
Circumference 116490764.53312
Area 1.079874105098E+15

Sphere

Radius = n
Volume 2.6694604504425E+22
Surface area 4.3194964203919E+15
Circumference 116490764.53312

Square

Length = n
Perimeter 74160324
Area 343734603486561
Diagonal 26219633.997696

Cube

Length = n
Surface area 2062407620919366
Volume 6.3728673911437E+21
Space diagonal 32112362.268442

Equilateral Triangle

Length = n
Perimeter 55620243
Area 1.4884144938957E+14
Altitude 16056181.134221

Triangular Pyramid

Length = n
Surface area 1.4884144938957E+14
Volume 7.5104962464672E+20
Height 8739877.9992319