18386985 (number)

18386985 is an odd 8-digits composite number following 18386984 and preceding 18386986. In scientific notation, it is written as 1.8386985 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 9781440 positive integers (up to 18386985) that are relatively prime to 18386985.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-six thousand nine hundred eighty-five

Notation

Scientific notation 1.8386985 × 10^7
Engineering notation 1.8386985 × 10^6

Prime Factorization of 18386985

Prime Factorization 15 × 461 × 2659

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18386985
Product of the distinct prime numbers

The prime factorization of 18386985 is 15 × 461 × 2659. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18386985)

Multiplication

n×y
n×2 36773970
n×3 55160955
n×4 73547940
n×5 91934925

Division

n÷y
n÷2 9193492.5
n÷3 6128995
n÷3 4596746.25
n÷5 3677397

Exponentiation

ny
n2 338081217390225
n3 6.2162942729358E+21
n4 1.1429890955206E+29
n5 2.10161233545E+36

Nth Root

y√n
2√n 4288.0047807809
3√n 263.93896373628
4√n 65.482858679054
5√n 28.372793965455

Divisors of 18386985

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18386984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18386985 can be divided by 8 positive divisors. The sum of these divisors (counting 18386985) is 1, the average is 0.125.

Base conversion 18386985

Base System Value
2 Binary 1000110001001000000101001
3 Ternary 1021121011012110
4 Quaternary 1012021000221
5 Quinary 14201340420
6 Senary 1454032533
8 Octal 106110051
10 Decimal 18386985
12 Duodecimal 61a8749
16 Hexadecimal 1189029
20 Vigesimal 5ei795
36 Base36 ay3hl

Cryptographic Hash Functions

md5 88d703cc3c7b20870c52401b34e60078
sha1 53022fee8ac18c419143abb9ee7e631ffce3218a
sha256 ddda97d382881bdec24fe767e238dd0ffe1919de0021ede2a2077397a2c47272
sha512 7eedbc37c4b80af3cd9b5fcbb4e51f8feb2940805acb7a9a65a1a06d1a1b3e7372eb96bc638bcc2ba34bc1e536c34c3c5916af65e1156e51104e6d889ba32258
ripemd-160 8f5beb2535d33346d1f4a7c9367ce49d8a30da3f

18386985 as geometric shapes

Circle

Radius = n
Diameter 36773970
Circumference 115528833.99533
Area 1.0621134688698E+15

Sphere

Radius = n
Volume 2.6038752560543E+22
Surface area 4.2484538754793E+15
Circumference 115528833.99533

Square

Length = n
Perimeter 73547940
Area 338081217390225
Diagonal 26003123.558151

Cube

Length = n
Surface area 2028487304341350
Volume 6.2162942729358E+21
Space diagonal 31847192.218007

Equilateral Triangle

Length = n
Perimeter 55160955
Area 1.4639346140115E+14
Altitude 15923596.109003

Triangular Pyramid

Length = n
Surface area 1.4639346140115E+14
Volume 7.3259730570733E+20
Height 8667707.8527169