18386985 is an odd 8-digits composite number following 18386984
and preceding 18386986 . In scientific notation, it is written as 1.8386985 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 9781440 positive integers (up to 18386985) that are relatively prime to 18386985.
18386985 has 8 divisors, whose sum is 19662720
The reverse of 18386985 is 58968381
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million three hundred eighty-six thousand nine hundred eighty-five
Scientific notation
1.8386985 × 10^7
Engineering notation
1.8386985 × 10^6
Prime Factorization
15 × 461 × 2659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18386985
Product of the distinct prime numbers
The prime factorization of 18386985 is 15 × 461 × 2659.
Since it has a total of 3 prime factors.
10 , 3 , 26 , 87 , 631 , 659 , 5910 , 1455 , 35492 , 63170 , 772385 , 850392 , 4749815 , 41803 , 80310684 , 54356907 , 129142182 , 863883354 , 3085202802 , 7860979006
n×2
36773970
n×3
55160955
n×4
73547940
n×5
91934925
n÷2
9193492.5
n÷3
6128995
n÷3
4596746.25
n÷5
3677397
n2
338081217390225
n3
6.2162942729358E+21
n4
1.1429890955206E+29
n5
2.10161233545E+36
2 √n
4288.0047807809
3 √n
263.93896373628
4 √n
65.482858679054
5 √n
28.372793965455
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
-18386984
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 18386985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18386985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001000000101001
3
Ternary
1021121011012110
4
Quaternary
1012021000221
5
Quinary
14201340420
6
Senary
1454032533
8
Octal
106110051
10
Decimal
18386985
12
Duodecimal
61a8749
16
Hexadecimal
1189029
20
Vigesimal
5ei795
36
Base36
ay3hl
md5
88d703cc3c7b20870c52401b34e60078
sha1
53022fee8ac18c419143abb9ee7e631ffce3218a
sha256
ddda97d382881bdec24fe767e238dd0ffe1919de0021ede2a2077397a2c47272
sha512
7eedbc37c4b80af3cd9b5fcbb4e51f8feb2940805acb7a9a65a1a06d1a1b3e7372eb96bc638bcc2ba34bc1e536c34c3c5916af65e1156e51104e6d889ba32258
ripemd-160
8f5beb2535d33346d1f4a7c9367ce49d8a30da3f
Diameter
36773970
Circumference
115528833.99533
Area
1.0621134688698E+15
Volume
2.6038752560543E+22
Surface area
4.2484538754793E+15
Circumference
115528833.99533
Perimeter
73547940
Area
338081217390225
Diagonal
26003123.558151
Surface area
2028487304341350
Volume
6.2162942729358E+21
Space diagonal
31847192.218007
Perimeter
55160955
Area
1.4639346140115E+14
Altitude
15923596.109003
Surface area
1.4639346140115E+14
Volume
7.3259730570733E+20
Height
8667707.8527169