18386989 (number)

18386989 is an odd 8-digits composite number following 18386988 and preceding 18386990. In scientific notation, it is written as 1.8386989 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 18370240 positive integers (up to 18386989) that are relatively prime to 18386989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8386989 × 10^7
Engineering notation 1.8386989 × 10^6

Prime Factorization of 18386989

Prime Factorization 1181 × 15569

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18386989
Product of the distinct prime numbers

The prime factorization of 18386989 is 1181 × 15569. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18386989)

Multiplication

n×y
n×2 36773978
n×3 55160967
n×4 73547956
n×5 91934945

Division

n÷y
n÷2 9193494.5
n÷3 6128996.3333333
n÷3 4596747.25
n÷5 3677397.8

Exponentiation

ny
n2 338081364486121
n3 6.2162983299113E+21
n4 1.142990090128E+29
n5 2.1016146214292E+36

Nth Root

y√n
2√n 4288.0052471983
3√n 263.93898287582
4√n 65.482862240424
5√n 28.372795199928

Divisors of 18386989

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 -18386988
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 18386989 can be divided by 4 positive divisors. The sum of these divisors (counting 18386989) is 1, the average is 0.25.

Base conversion 18386989

Base System Value
2 Binary 1000110001001000000101101
3 Ternary 1021121011012121
4 Quaternary 1012021000231
5 Quinary 14201340424
6 Senary 1454032541
8 Octal 106110055
10 Decimal 18386989
12 Duodecimal 61a8751
16 Hexadecimal 118902d
20 Vigesimal 5ei799
36 Base36 ay3hp

Cryptographic Hash Functions

md5 3d68257226014d64c21f66fe9cbdde05
sha1 024a03dfdf2dc4360c9d5f539c860c2589fb523e
sha256 e040d68c70d66437d96f6e7751e5dfc8956b91db0ba60f76c89094cf5bf1116a
sha512 6849a6bbb515ffb36c1aef5946619cbe74ecd86b03039ce02babe5cd6bbd5467232d68c1ebc8b8d0130eb825d729643d9f62ca4e4194c843f7fffecd4f3defcb
ripemd-160 3d008ab117a4dd2ad043a90e4577fabf10bfbc51

18386989 as geometric shapes

Circle

Radius = n
Diameter 36773978
Circumference 115528859.12807
Area 1.0621139309852E+15

Sphere

Radius = n
Volume 2.6038769554362E+22
Surface area 4.2484557239408E+15
Circumference 115528859.12807

Square

Length = n
Perimeter 73547956
Area 338081364486121
Diagonal 26003129.215005

Cube

Length = n
Surface area 2028488186916726
Volume 6.2162983299113E+21
Space diagonal 31847199.14621

Equilateral Triangle

Length = n
Perimeter 55160967
Area 1.4639352509554E+14
Altitude 15923599.573105

Triangular Pyramid

Length = n
Surface area 1.4639352509554E+14
Volume 7.3259778382648E+20
Height 8667709.738335