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.
18386989 has 4 divisors, whose sum is 18403740
The reverse of 18386989 is 98968381
Previous prime number is 1181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighteen million three hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
1.8386989 × 10^7
Engineering notation
1.8386989 × 10^6
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.
6 , 7 , 89 , 24 , 214 , 458 , 359 , 9075 , 24139 , 60914 , 612322 , 599347 , 8457684 , 5445075 , 41313116 , 34075717 , 345364923 , 755773135 , 7865973313 , 7698718870
n×2
36773978
n×3
55160967
n×4
73547956
n×5
91934945
n÷2
9193494.5
n÷3
6128996.3333333
n÷3
4596747.25
n÷5
3677397.8
n2
338081364486121
n3
6.2162983299113E+21
n4
1.142990090128E+29
n5
2.1016146214292E+36
2 √n
4288.0052471983
3 √n
263.93898287582
4 √n
65.482862240424
5 √n
28.372795199928
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
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
md5
3d68257226014d64c21f66fe9cbdde05
sha1
024a03dfdf2dc4360c9d5f539c860c2589fb523e
sha256
e040d68c70d66437d96f6e7751e5dfc8956b91db0ba60f76c89094cf5bf1116a
sha512
6849a6bbb515ffb36c1aef5946619cbe74ecd86b03039ce02babe5cd6bbd5467232d68c1ebc8b8d0130eb825d729643d9f62ca4e4194c843f7fffecd4f3defcb
ripemd-160
3d008ab117a4dd2ad043a90e4577fabf10bfbc51
Diameter
36773978
Circumference
115528859.12807
Area
1.0621139309852E+15
Volume
2.6038769554362E+22
Surface area
4.2484557239408E+15
Circumference
115528859.12807
Perimeter
73547956
Area
338081364486121
Diagonal
26003129.215005
Surface area
2028488186916726
Volume
6.2162983299113E+21
Space diagonal
31847199.14621
Perimeter
55160967
Area
1.4639352509554E+14
Altitude
15923599.573105
Surface area
1.4639352509554E+14
Volume
7.3259778382648E+20
Height
8667709.738335