18085905 (number)

18085905 is an odd 8-digits composite number following 18085904 and preceding 18085906. In scientific notation, it is written as 1.8085905 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 9645792 positive integers (up to 18085905) that are relatively prime to 18085905.

Interesting facts

Basic properties

Name

Name eighteen million eighty-five thousand nine hundred five

Notation

Scientific notation 1.8085905 × 10^7
Engineering notation 1.8085905 × 10^6

Prime Factorization of 18085905

Prime Factorization 3 × 3 × 5 × 401909

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 6028635
Product of the distinct prime numbers

The prime factorization of 18085905 is 3 × 3 × 5 × 401909. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18085905)

Multiplication

n×y
n×2 36171810
n×3 54257715
n×4 72343620
n×5 90429525

Division

n÷y
n÷2 9042952.5
n÷3 6028635
n÷3 4521476.25
n÷5 3617181

Exponentiation

ny
n2 327099959669025
n3 5.9158987960778E+21
n4 1.0699438361548E+29
n5 1.9350902576031E+36

Nth Root

y√n
2√n 4252.7526379981
3√n 262.49039420632
4√n 65.213132404433
5√n 28.279260535434

Divisors of 18085905

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18085904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18085905 can be divided by 12 positive divisors. The sum of these divisors (counting 18085905) is 1, the average is 0.083333333333333.

Base conversion 18085905

Base System Value
2 Binary 1000100111111100000010001
3 Ternary 1021000212012100
4 Quaternary 1010333200101
5 Quinary 14112222110
6 Senary 1443351013
8 Octal 104774021
10 Decimal 18085905
12 Duodecimal 6082469
16 Hexadecimal 113f811
20 Vigesimal 5d0ef5
36 Base36 arn69

Cryptographic Hash Functions

md5 540a37e2b7d01de01d920b059a44bbc0
sha1 f417f5668f9073444a60dd4f382cb67648bedb0c
sha256 a130be653f2b6382f6f4c13099cb8d449375c1aa564023b6357ea98c50d332cb
sha512 d8f3f8a8d8d12c5ce76e0b401cdc0c0859a28599d33dde5fd32de812d66d67ca8af06ad17432121b63d712d6ad0938419e2b35467fbc13e3f24248d45308a3e4
ripemd-160 304e41ce4eba078b095c7d8707829441424f7a29

18085905 as geometric shapes

Circle

Radius = n
Diameter 36171810
Circumference 113637092.56305
Area 1.0276148302857E+15

Sphere

Radius = n
Volume 2.4780458929518E+22
Surface area 4.1104593211429E+15
Circumference 113637092.56305

Square

Length = n
Perimeter 72343620
Area 327099959669025
Diagonal 25577332.138791

Cube

Length = n
Surface area 1962599758014150
Volume 5.9158987960778E+21
Space diagonal 31325706.360864

Equilateral Triangle

Length = n
Perimeter 54257715
Area 1.4163843732512E+14
Altitude 15662853.180432

Triangular Pyramid

Length = n
Surface area 1.4163843732512E+14
Volume 6.9719535925333E+20
Height 8525777.3795971