18389986 (number)

18389986 is an even 8-digits composite number following 18389985 and preceding 18389987. In scientific notation, it is written as 1.8389986 × 10^7. The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors. There are 8654688 positive integers (up to 18389986) that are relatively prime to 18389986.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8389986 × 10^7
Engineering notation 1.8389986 × 10^6

Prime Factorization of 18389986

Prime Factorization 2 × 19 × 163 × 2969

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18389986
Product of the distinct prime numbers

The prime factorization of 18389986 is 2 × 19 × 163 × 2969. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 82, 74, 249, 95, 5845, 7990, 19715, 98490, 451637, 324196, 5938591, 9832653, 80139356, 88035447, 825363018, 969980749, 7125644266, 7872384000

Basic calculations (n = 18389986)

Multiplication

n×y
n×2 36779972
n×3 55169958
n×4 73559944
n×5 91949930

Division

n÷y
n÷2 9194993
n÷3 6129995.3333333
n÷3 4597496.5
n÷5 3677997.2

Exponentiation

ny
n2 338191585080196
n3 6.2193385149426E+21
n4 1.1437354821906E+29
n5 2.1033279505188E+36

Nth Root

y√n
2√n 4288.354696151
3√n 263.9533224025
4√n 65.485530433455
5√n 28.373720068309

Divisors of 18389986

1, 2, 19, 38, 163, 326, 2969, 3097, 5938, 6194, 56411, 112822, 483947, 967894, 9194993, 18389986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18389985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18389986 can be divided by 16 positive divisors. The sum of these divisors (counting 18389986) is 1, the average is 0.0625.

Base conversion 18389986

Base System Value
2 Binary 1000110001001101111100010
3 Ternary 1021121022022121
4 Quaternary 1012021233202
5 Quinary 14201434421
6 Senary 1454054454
8 Octal 106115742
10 Decimal 18389986
12 Duodecimal 61aa42a
16 Hexadecimal 1189be2
20 Vigesimal 5eiej6
36 Base36 ay5sy

Cryptographic Hash Functions

md5 11c9efb8bdfa2345dd37a0a3547f7bdc
sha1 d4f1ce44c01f8485e47a4faed9798b597f1dcd5c
sha256 436acea29a9ca3121d861ceef8d9a05fdac42a5cc06a3385516dbfadf9b15e7a
sha512 4d3d002715c404187456c34b7d3ebd5422453439ef4419b79265273bd71b34be966360f7124bf7b8337f15781cc4491e31678c939475d7d58c1a1817741c645d
ripemd-160 5d032601ce15946a7c08b4be9949662e75db1117

18389986 as geometric shapes

Circle

Radius = n
Diameter 36779972
Circumference 115547689.83444
Area 1.0624601991938E+15

Sphere

Radius = n
Volume 2.6051504251642E+22
Surface area 4.2498407967753E+15
Circumference 115547689.83444

Square

Length = n
Perimeter 73559944
Area 338191585080196
Diagonal 26007367.613051

Cube

Length = n
Surface area 2029149510481176
Volume 6.2193385149426E+21
Space diagonal 31852390.10248

Equilateral Triangle

Length = n
Perimeter 55169958
Area 1.4644125201279E+14
Altitude 15926195.05124

Triangular Pyramid

Length = n
Surface area 1.4644125201279E+14
Volume 7.3295607306843E+20
Height 8669122.5376838