18088938 is an even 8-digits composite number following 18088937
and preceding 18088939 . In scientific notation, it is written as 1.8088938 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 5168016 positive integers (up to 18088938) that are relatively prime to 18088938.
18088938 has 16 divisors, whose sum is 30765000
The reverse of 18088938 is 83988081
Previous prime number is 49
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million eighty-eight thousand nine hundred thirty-eight
Scientific notation
1.8088938 × 10^7
Engineering notation
1.8088938 × 10^6
Prime Factorization
2 × 9 × 49 × 20509
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18088938
Product of the distinct prime numbers
The prime factorization of 18088938 is 2 × 9 × 49 × 20509.
Since it has a total of 4 prime factors.
6 , 7 , 56 , 87 , 46 , 209 , 1414 , 1071 , 11718 , 53934 , 401460 , 382460 , 4473373 , 7802671 , 29406891 , 45011348 , 386397506 , 124007870 , 5528805922 , 6773785423
n×2
36177876
n×3
54266814
n×4
72355752
n×5
90444690
n÷2
9044469
n÷3
6029646
n÷3
4522234.5
n÷5
3617787.6
n2
327209677967844
n3
5.9188755777603E+21
n4
1.0706617335582E+29
n5
1.9367133717307E+36
2 √n
4253.109215621
3 √n
262.50506656888
4 √n
65.215866287438
5 √n
28.280208956255
1 , 2 , 9 , 18 , 49 , 98 , 441 , 882 , 20509 , 41018 , 184581 , 369162 , 1004941 , 2009882 , 9044469 , 18088938
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
-18088937
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 18088938 can be divided by 16 positive divisors.
The sum of these divisors (counting 18088938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000101000000001111101010
3
Ternary
1021001000100200
4
Quaternary
1011000033222
5
Quinary
14112321223
6
Senary
1443413030
8
Octal
105001752
10
Decimal
18088938
12
Duodecimal
6084176
16
Hexadecimal
11403ea
20
Vigesimal
5d126i
36
Base36
arpii
md5
b3afe79b3664aa74cd93ed19f107ee9f
sha1
dfdfdd6ef93276a8489b67802176a3cac928d8d1
sha256
0b88ab116a7de612515f1527b532ad7cb44e5345fd5a99aa251908b8fad3a357
sha512
d4b9f78da2edc341416a65c21175042fd665ad6b19c580a603fd7e4e60a976f9bde10ccfc1a03148c0b799372bb0e5cf111687ae6445d8a29a950094f1a0ce08
ripemd-160
27405ceed3e2e99207459ffbc40ee407c85cff6f
Diameter
36177876
Circumference
113656149.46408
Area
1.0279595204873E+15
Volume
2.4792928043472E+22
Surface area
4.111838081949E+15
Circumference
113656149.46408
Perimeter
72355752
Area
327209677967844
Diagonal
25581621.448526
Surface area
1963258067807064
Volume
5.9188755777603E+21
Space diagonal
31330959.670963
Perimeter
54266814
Area
1.4168594674214E+14
Altitude
15665479.835482
Surface area
1.4168594674214E+14
Volume
6.9754617633896E+20
Height
8527207.1495087