18386988 is an even 8-digits composite number following 18386987
and preceding 18386989 . In scientific notation, it is written as 1.8386988 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors.
There are 6128992 positive integers (up to 18386988) that are relatively prime to 18386988.
18386988 has 12 divisors, whose sum is 42903000
The reverse of 18386988 is 88968381
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million three hundred eighty-six thousand nine hundred eighty-eight
Scientific notation
1.8386988 × 10^7
Engineering notation
1.8386988 × 10^6
Prime Factorization
2 × 2 × 3 × 1532249
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9193494
Product of the distinct prime numbers
The prime factorization of 18386988 is 2 × 2 × 3 × 1532249.
Since it has a total of 4 prime factors.
8 , 6 , 48 , 56 , 332 , 868 , 8660 , 710 , 55128 , 26914 , 757954 , 899650 , 7054912 , 318773 , 84031380 , 1794787 , 153671477 , 133053749 , 3456410783 , 9671462354
n×2
36773976
n×3
55160964
n×4
73547952
n×5
91934940
n÷2
9193494
n÷3
6128996
n÷3
4596747
n÷5
3677397.6
n2
338081327712144
n3
6.2162973156673E+21
n4
1.1429898414761E+29
n5
2.1016140499342E+36
2 √n
4288.0051305939
3 √n
263.93897809094
4 √n
65.482861350081
5 √n
28.37279489131
1 , 2 , 3 , 4 , 6 , 12 , 1532249 , 3064498 , 4596747 , 6128996 , 9193494 , 18386988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18386987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18386988 can be divided by 12 positive divisors.
The sum of these divisors (counting 18386988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000110001001000000101100
3
Ternary
1021121011012120
4
Quaternary
1012021000230
5
Quinary
14201340423
6
Senary
1454032540
8
Octal
106110054
10
Decimal
18386988
12
Duodecimal
61a8750
16
Hexadecimal
118902c
20
Vigesimal
5ei798
36
Base36
ay3ho
md5
d2122e6933bc2cfccc5484cd993b8146
sha1
e2783852945b04aa55d8e7379d3fdfc571634199
sha256
90f48839f62112c82bc345b77b6c55b7c8e3debea86ed8625f8324f4f621d316
sha512
a3cb953936abf3270911c422a3c86a5460cc5bdad59a125c710e2fcacd2ab5bb9d9b90633beb051b296547172955310d922456d97f38ac5ddb5362c7868e029f
ripemd-160
79810e85921dcb103201ed24f1dae11dfc03d743
Diameter
36773976
Circumference
115528852.84489
Area
1.0621138154564E+15
Volume
2.6038765305907E+22
Surface area
4.2484552618254E+15
Circumference
115528852.84489
Perimeter
73547952
Area
338081327712144
Diagonal
26003127.800791
Surface area
2028487966272864
Volume
6.2162973156673E+21
Space diagonal
31847197.414159
Perimeter
55160964
Area
1.4639350917194E+14
Altitude
15923598.70708
Surface area
1.4639350917194E+14
Volume
7.3259766429668E+20
Height
8667709.2669305