18238081 is an odd 8-digits composite number following 18238080
and preceding 18238082 . In scientific notation, it is written as 1.8238081 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17271684 positive integers (up to 18238081) that are relatively prime to 18238081.
18238081 has 8 divisors, whose sum is 19258400
The reverse of 18238081 is 18083281
Previous prime number is 361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million two hundred thirty-eight thousand eighty-one
Scientific notation
1.8238081 × 10^7
Engineering notation
1.8238081 × 10^6
Prime Factorization
19 × 361 × 2659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18238081
Product of the distinct prime numbers
The prime factorization of 18238081 is 19 × 361 × 2659.
Since it has a total of 3 prime factors.
1 , 4 , 70 , 35 , 713 , 527 , 8518 , 5106 , 7504 , 47880 , 884926 , 771939 , 4177490 , 2121742 , 1494905 , 74425471 , 86304350 , 945227833 , 2691249578 , 3636841561
n×2
36476162
n×3
54714243
n×4
72952324
n×5
91190405
n÷2
9119040.5
n÷3
6079360.3333333
n÷3
4559520.25
n÷5
3647616.2
n2
332627598562561
n3
6.0664890854195E+21
n4
1.106411193255E+29
n5
2.0178816961891E+36
2 √n
4270.6066313815
3 √n
263.22454282366
4 √n
65.349878587351
5 √n
28.326689886892
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
-18238080
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 18238081 can be divided by 8 positive divisors.
The sum of these divisors (counting 18238081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101100100101010000001
3
Ternary
1021022120221111
4
Quaternary
1011210222001
5
Quinary
14132104311
6
Senary
1450523321
8
Octal
105445201
10
Decimal
18238081
12
Duodecimal
6136541
16
Hexadecimal
1164a81
20
Vigesimal
5djf41
36
Base36
auwld
md5
50261f2f32fa0c1ba205050c50a37809
sha1
b05a71de2a71cf0f96cafd06a7d41e689698ca43
sha256
f9f54e72c92a77085292c7d93e53c039a8fcf6008c401e2694207f1318d8d5bd
sha512
44327aca51dad3fa8b9a0282d6868d7181fb81c10510102bea280ceaa492b05f025e4db36e66ed9d0054c6593b5f59f20062797cb169cf7e3b92e78c7a78fb9e
ripemd-160
8409521176aa696860889fa44e1c39c1322095ba
Diameter
36476162
Circumference
114593242.57035
Area
1.0449804200254E+15
Volume
2.5411250058449E+22
Surface area
4.1799216801014E+15
Circumference
114593242.57035
Perimeter
72952324
Area
332627598562561
Diagonal
25792541.501859
Surface area
1995765591375366
Volume
6.0664890854195E+21
Space diagonal
31589282.924557
Perimeter
54714243
Area
1.440319751775E+14
Altitude
15794641.462278
Surface area
1.440319751775E+14
Volume
7.1494259504905E+20
Height
8597513.833953