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.
18390986 has 8 divisors, whose sum is 27604800
The reverse of 18390986 is 68909381
Previous prime number is 2699
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million three hundred ninety thousand nine hundred eighty-six
Scientific notation
1.8390986 × 10^7
Engineering notation
1.8390986 × 10^6
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.
1 , 7 , 26 , 57 , 573 , 344 , 2120 , 3350 , 14079 , 21969 , 956807 , 783841 , 7930840 , 5327314 , 90821700 , 28757198 , 581042841 , 47545566 , 7902820708 , 4374477326
n×2
36781972
n×3
55172958
n×4
73563944
n×5
91954930
n÷2
9195493
n÷3
6130328.6666667
n÷3
4597746.5
n÷5
3678197.2
n2
338228366052196
n3
6.2203531448688E+21
n4
1.1439842760234E+29
n5
2.1038998804566E+36
2 √n
4288.4712893991
3 √n
263.95810668271
4 √n
65.486420648857
5 √n
28.374028639538
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
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
md5
a95c7b388cf8d402c8376e8300e40f6b
sha1
2f36e56e85a8cd67cbc8805de80341e1fc1fa620
sha256
cb64e51be41b3449fef086030910241da59eee661e89ccf1b916bb653a2ba4c2
sha512
0ac88bfa320497e60b0d6b6df7a66f2a83ba98f3a20c195aad8092fe15b13ee31289395769869dae14ddbfdff8e5ed469d21a17cd81ed45826292c0ec02c7a9a
ripemd-160
3044e0a6b2d4e6de3d7fb75a1312e58d4d0712f6
Diameter
36781972
Circumference
115553973.01975
Area
1.0625757500253E+15
Volume
2.6055754323539E+22
Surface area
4.250303000101E+15
Circumference
115553973.01975
Perimeter
73563944
Area
338228366052196
Diagonal
26008781.826614
Surface area
2029370196313176
Volume
6.2203531448688E+21
Space diagonal
31854122.153288
Perimeter
55172958
Area
1.4645717864085E+14
Altitude
15927061.076644
Surface area
1.4645717864085E+14
Volume
7.3307564835197E+20
Height
8669593.9422046