18012238 is an even 8-digits composite number following 18012237
and preceding 18012239 . In scientific notation, it is written as 1.8012238 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 8937240 positive integers (up to 18012238) that are relatively prime to 18012238.
18012238 has 8 divisors, whose sum is 27225000
The reverse of 18012238 is 83221081
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million twelve thousand two hundred thirty-eight
Scientific notation
1.8012238 × 10^7
Engineering notation
1.8012238 × 10^6
Prime Factorization
2 × 131 × 68749
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18012238
Product of the distinct prime numbers
The prime factorization of 18012238 is 2 × 131 × 68749.
Since it has a total of 3 prime factors.
10 , 4 , 26 , 8 , 326 , 688 , 7763 , 2291 , 58659 , 19847 , 392371 , 698919 , 8402329 , 8043897 , 89713792 , 61922732 , 1791753 , 393729545 , 1427621997 , 9043889011
n×2
36024476
n×3
54036714
n×4
72048952
n×5
90061190
n÷2
9006119
n÷3
6004079.3333333
n÷3
4503059.5
n÷5
3602447.6
n2
324440717768644
n3
5.8439034253396E+21
n4
1.0526177934623E+29
n5
1.8960002218878E+36
2 √n
4244.0827041894
3 √n
262.13351973074
4 √n
65.146624656919
5 √n
28.256185651695
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
-18012237
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 18012238 can be divided by 8 positive divisors.
The sum of these divisors (counting 18012238) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000100101101100001001110
3
Ternary
1020220010010221
4
Quaternary
1010231201032
5
Quinary
14102342423
6
Senary
1442021554
8
Octal
104554116
10
Decimal
18012238
12
Duodecimal
60478ba
16
Hexadecimal
112d84e
20
Vigesimal
5cbabi
36
Base36
aq2by
md5
2c31bfaf6fae590a8c6388b58224733d
sha1
f371c409c8ce5ff2f3d0665a1e1c1762b303eaa3
sha256
2aa053dc6b70728729c5e197da3045194053730eee7c9f965b5a3c6855d030e1
sha512
3d5f3b972e694b27ab1a15eaf9fd8a41e51f0154682420fdc9cd2ef11d2b4098b02f98ab13b2be91af29cbd302473692e70b43b5bed5c40fc97a43b258701bf6
ripemd-160
9319b0a6b6580e01a07310f571bd8fdef66054d2
Diameter
36024476
Circumference
113174229.15102
Area
1.0192605754674E+15
Volume
2.447888542578E+22
Surface area
4.0770423018695E+15
Circumference
113174229.15102
Perimeter
72048952
Area
324440717768644
Diagonal
25473151.268292
Surface area
1946644306611864
Volume
5.8439034253396E+21
Space diagonal
31198111.374023
Perimeter
54036714
Area
1.4048695180485E+14
Altitude
15599055.687011
Surface area
1.4048695180485E+14
Volume
6.8871062344283E+20
Height
8491050.422764