18085281 (number)

18085281 is an odd 8-digits composite number following 18085280 and preceding 18085282. In scientific notation, it is written as 1.8085281 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 12056852 positive integers (up to 18085281) that are relatively prime to 18085281.

Interesting facts

Basic properties

Name

Name eighteen million eighty-five thousand two hundred eighty-one

Notation

Scientific notation 1.8085281 × 10^7
Engineering notation 1.8085281 × 10^6

Prime Factorization of 18085281

Prime Factorization 3 × 6028427

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18085281
Product of the distinct prime numbers

The prime factorization of 18085281 is 3 × 6028427. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18085281)

Multiplication

n×y
n×2 36170562
n×3 54255843
n×4 72341124
n×5 90426405

Division

n÷y
n÷2 9042640.5
n÷3 6028427
n÷3 4521320.25
n÷5 3617056.2

Exponentiation

ny
n2 327077388848961
n3 5.9152864860797E+21
n4 1.0697961829625E+29
n5 1.9347564581605E+36

Nth Root

y√n
2√n 4252.6792731171
3√n 262.48737535656
4√n 65.212569901186
5√n 28.279065394499

Divisors of 18085281

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18085280
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18085281 can be divided by 4 positive divisors. The sum of these divisors (counting 18085281) is 1, the average is 0.25.

Base conversion 18085281

Base System Value
2 Binary 1000100111111010110100001
3 Ternary 1021000211100020
4 Quaternary 1010333112201
5 Quinary 14112212111
6 Senary 1443344053
8 Octal 104772641
10 Decimal 18085281
12 Duodecimal 6082029
16 Hexadecimal 113f5a1
20 Vigesimal 5d0d41
36 Base36 armox

Cryptographic Hash Functions

md5 041f899792a02519412f077459221b11
sha1 f511736f4f2ec8d035e032d9e98427cba67bb428
sha256 566e8ccab6cbde50975966489ab004a91a0dee9eac75c30669a3fa72d1770189
sha512 79708f4879795b7ebb53860fb6dcca7b1d0f4bab034ceae88bf581e8a35fc5804ffb2a8992d20aa75eec147e1f9cd04cb985fa10a35158a10c1b9e429ebf12b0
ripemd-160 9a3f1aa71dba0ca7ca603d8d2aa3298ea18efd68

18085281 as geometric shapes

Circle

Radius = n
Diameter 36170562
Circumference 113633171.85541
Area 1.0275439219632E+15

Sphere

Radius = n
Volume 2.4777894091396E+22
Surface area 4.1101756878529E+15
Circumference 113633171.85541

Square

Length = n
Perimeter 72341124
Area 327077388848961
Diagonal 25576449.669528

Cube

Length = n
Surface area 1962464333093766
Volume 5.9152864860797E+21
Space diagonal 31324625.56116

Equilateral Triangle

Length = n
Perimeter 54255843
Area 1.4162866387334E+14
Altitude 15662312.78058

Triangular Pyramid

Length = n
Surface area 1.4162866387334E+14
Volume 6.9712319782802E+20
Height 8525483.2231762