18163985 is an odd 8-digits composite number following 18163984
and preceding 18163986 . In scientific notation, it is written as 1.8163985 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 12052800 positive integers (up to 18163985) that are relatively prime to 18163985.
18163985 has 8 divisors, whose sum is 20894016
The reverse of 18163985 is 58936181
Previous prime number is 155
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighteen million one hundred sixty-three thousand nine hundred eighty-five
Scientific notation
1.8163985 × 10^7
Engineering notation
1.8163985 × 10^6
Prime Factorization
7 × 155 × 16741
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18163985
Product of the distinct prime numbers
The prime factorization of 18163985 is 7 × 155 × 16741.
Since it has a total of 3 prime factors.
10 , 2 , 55 , 18 , 590 , 478 , 2866 , 9737 , 18079 , 82306 , 660920 , 190851 , 8604347 , 2178568 , 53845991 , 90863063 , 190399517 , 232947292 , 9137543036 , 2016530308
n×2
36327970
n×3
54491955
n×4
72655940
n×5
90819925
n÷2
9081992.5
n÷3
6054661.6666667
n÷3
4540996.25
n÷5
3632797
n2
329930351080225
n3
5.9928499480659E+21
n4
1.0885403656392E+29
n5
1.9772230873365E+36
2 √n
4261.9226881773
3 √n
262.86759082548
4 √n
65.283402853844
5 √n
28.303635776866
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
-18163984
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 18163985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18163985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101010010100100010001
3
Ternary
1021011211022012
4
Quaternary
1011102210101
5
Quinary
14122221420
6
Senary
1445152305
8
Octal
105224421
10
Decimal
18163985
12
Duodecimal
60bb695
16
Hexadecimal
1152911
20
Vigesimal
5da9j5
36
Base36
atbf5
md5
c5e7cd9d20399dab69f6e672a789963b
sha1
e99d4d5d71278129296d820c5899433792c1be2a
sha256
fa7dd32eedb5e957eff1ab36a6ead84e38a982d0f092d1d2d0095c68f80a1ba5
sha512
c9d619364db328a251368411b7055e785286c4b250b95aa9affae44103401d3c3d8c0d023088a0120a50f5ce1abfa8321083ec9c15aa3621d98a6805d77bb113
ripemd-160
424053f40f50ed6c15f23c0d7634dbb8052dcfa6
Diameter
36327970
Circumference
114127683.67183
Area
1.0365067671499E+15
Volume
2.5102791161213E+22
Surface area
4.1460270685997E+15
Circumference
114127683.67183
Perimeter
72655940
Area
329930351080225
Diagonal
25687753.933741
Surface area
1979582106481350
Volume
5.9928499480659E+21
Space diagonal
31460944.887919
Perimeter
54491955
Area
1.428640327575E+14
Altitude
15730472.443959
Surface area
1.428640327575E+14
Volume
7.0626413948515E+20
Height
8562584.6445805