18388938 is an even 8-digits composite number following 18388937
and preceding 18388939 . In scientific notation, it is written as 1.8388938 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 5895360 positive integers (up to 18388938) that are relatively prime to 18388938.
18388938 has 16 divisors, whose sum is 28350720
The reverse of 18388938 is 83988381
Previous prime number is 47
Is Prime? no Number parity even Number length 8 Sum of Digits 48 Digital Root 3
Name
eighteen million three hundred eighty-eight thousand nine hundred thirty-eight
Scientific notation
1.8388938 × 10^7
Engineering notation
1.8388938 × 10^6
Prime Factorization
2 × 183 × 47 × 1069
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
18388938 Product of the distinct prime numbers
The prime factorization of 18388938 is 2 × 183 × 47 × 1069.
Since it has a total of 4 prime factors.
1 , 6 , 89 , 6 , 995 , 173 , 8446 , 3739 , 38539 , 94832 , 592361 , 444653 , 3137336 , 6556695 , 22103506 , 89856801 , 983329683 , 948788811 , 151807805 , 3189452228
n×2
36777876
n×3
55166814
n×4
73555752
n×5
91944690
n÷2
9194469
n÷3
6129646
n÷3
4597234.5
n÷5
3677787.6
n2
338153040767844
n3
6.2182753011914E+21
n4
1.1434747898054E+29
n5
2.1027287014294E+36
2 √n4288.232503025
3 √n263.94830829071
4 √n65.484597448751
5 √n28.373396671255
1 , 2 , 47 , 94 , 183 , 366 , 1069 , 2138 , 8601 , 17202 , 50243 , 100486 , 195627 , 391254 , 9194469 , 18388938
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-18388937 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18388938 can be divided by 16 positive divisors.
The sum of these divisors (counting 18388938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000110001001011111001010
3
Ternary
1021121020212210
4
Quaternary
1012021133022
5
Quinary
14201421223
6
Senary
1454045550
8
Octal
106113712
10
Decimal
18388938
12
Duodecimal
61a98b6
16
Hexadecimal
11897ca
20
Vigesimal
5eic6i
36
Base36
ay4zu
md5
37eed056333b4369a25cb9836cb0b4da
sha1
4abbbd7778d22c150bddb47450d1f7153357194c
sha256
4d98e9d96d661fb42d7365af556fd7a05d6bf0d2ea7c076c3be8dc2a0660420a
sha512
e5c5eb8e9e06580d0c95e06179cd02b8354a102dcaee146d51fca0f48f0b8552c548e2165498cd19388e1242e908fd445b39c4a7e1afeed9d9eee367e1eec2fe
ripemd-160
fd86a2ef1c76256ce1b536d55f60d4d8d6f496c0
Diameter
36777876
Circumference
115541105.05624
Area
1.0623391086653E+15
Volume
2.6047050672295E+22
Surface area
4.2493564346612E+15
Circumference
115541105.05624
Perimeter
73555752
Area
338153040767844
Diagonal
26005885.517238
Surface area
2028918244607064
Volume
6.2182753011914E+21
Space diagonal
31850574.913234
Perimeter
55166814
Area
1.4642456183595E+14
Altitude
15925287.456617
Surface area
1.4642456183595E+14
Volume
7.328307721262E+20
Height
8668628.505746