18390986 (number)

18390986 is an even 8-digits composite number following 18390985 and preceding 18390987. In scientific notation, it is written as 1.8390986 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 9189388 positive integers (up to 18390986) that are relatively prime to 18390986.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8390986 × 10^7
Engineering notation 1.8390986 × 10^6

Prime Factorization of 18390986

Prime Factorization 2 × 2699 × 3407

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18390986
Product of the distinct prime numbers

The prime factorization of 18390986 is 2 × 2699 × 3407. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18390986)

Multiplication

n×y
n×2 36781972
n×3 55172958
n×4 73563944
n×5 91954930

Division

n÷y
n÷2 9195493
n÷3 6130328.6666667
n÷3 4597746.5
n÷5 3678197.2

Exponentiation

ny
n2 338228366052196
n3 6.2203531448688E+21
n4 1.1439842760234E+29
n5 2.1038998804566E+36

Nth Root

y√n
2√n 4288.4712893991
3√n 263.95810668271
4√n 65.486420648857
5√n 28.374028639538

Divisors of 18390986

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 -18390985
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 18390986 can be divided by 8 positive divisors. The sum of these divisors (counting 18390986) is 1, the average is 0.125.

Base conversion 18390986

Base System Value
2 Binary 1000110001001111111001010
3 Ternary 1021121100200122
4 Quaternary 1012021333022
5 Quinary 14202002421
6 Senary 1454103242
8 Octal 106117712
10 Decimal 18390986
12 Duodecimal 61aab22
16 Hexadecimal 1189fca
20 Vigesimal 5eih96
36 Base36 ay6kq

Cryptographic Hash Functions

md5 a95c7b388cf8d402c8376e8300e40f6b
sha1 2f36e56e85a8cd67cbc8805de80341e1fc1fa620
sha256 cb64e51be41b3449fef086030910241da59eee661e89ccf1b916bb653a2ba4c2
sha512 0ac88bfa320497e60b0d6b6df7a66f2a83ba98f3a20c195aad8092fe15b13ee31289395769869dae14ddbfdff8e5ed469d21a17cd81ed45826292c0ec02c7a9a
ripemd-160 3044e0a6b2d4e6de3d7fb75a1312e58d4d0712f6

18390986 as geometric shapes

Circle

Radius = n
Diameter 36781972
Circumference 115553973.01975
Area 1.0625757500253E+15

Sphere

Radius = n
Volume 2.6055754323539E+22
Surface area 4.250303000101E+15
Circumference 115553973.01975

Square

Length = n
Perimeter 73563944
Area 338228366052196
Diagonal 26008781.826614

Cube

Length = n
Surface area 2029370196313176
Volume 6.2203531448688E+21
Space diagonal 31854122.153288

Equilateral Triangle

Length = n
Perimeter 55172958
Area 1.4645717864085E+14
Altitude 15927061.076644

Triangular Pyramid

Length = n
Surface area 1.4645717864085E+14
Volume 7.3307564835197E+20
Height 8669593.9422046