18081009 is an odd 8-digits composite number following 18081008
and preceding 18081010 . In scientific notation, it is written as 1.8081009 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 8 positive divisors.
There are 12053988 positive integers (up to 18081009) that are relatively prime to 18081009.
18081009 has 8 divisors, whose sum is 26786720
The reverse of 18081009 is 90018081
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighteen million eighty-one thousand nine
Scientific notation
1.8081009 × 10^7
Engineering notation
1.8081009 × 10^6
Prime Factorization
3 × 3 × 3 × 669667
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2009001
Product of the distinct prime numbers
The prime factorization of 18081009 is 3 × 3 × 3 × 669667.
Since it has a total of 4 prime factors.
8 , 2 , 2 , 51 , 904 , 312 , 3844 , 8353 , 54045 , 53349 , 899176 , 867123 , 4692315 , 1060056 , 92477833 , 43748298 , 929629521 , 157829268 , 9946739204 , 138723068
n×2
36162018
n×3
54243027
n×4
72324036
n×5
90405045
n÷2
9040504.5
n÷3
6027003
n÷3
4520252.25
n÷5
3616201.8
n2
326922886458081
n3
5.9110956523545E+21
n4
1.0687857369008E+29
n5
1.9324724527976E+36
2 √n
4252.1769718581
3 √n
262.46670598143
4 √n
65.208718526421
5 √n
28.277729284945
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
-18081008
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 18081009 can be divided by 8 positive divisors.
The sum of these divisors (counting 18081009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000100111110010011110001
3
Ternary
1021000121111000
4
Quaternary
1010332103301
5
Quinary
14112043014
6
Senary
1443312213
8
Octal
104762361
10
Decimal
18081009
12
Duodecimal
607b669
16
Hexadecimal
113e4f1
20
Vigesimal
5d02a9
36
Base36
arje9
md5
5df7905ca75a316b54721bc6f2aa5258
sha1
105db216c8454c83cf4d3dce1d2577b6bde85a17
sha256
ade7c489c30fcb0e432ed08f19a4eb564ec98736473ea8541f1a711f9985d70a
sha512
a71a3427ede31c816a0147ad20475023c38cb008333542a4d86968049ea6aeb7631de2e7ff2d17daf70b02bac9731e6ccfa981dca98c0b305eafa141996951c8
ripemd-160
c38b269625c6a11aaf947bdb5dda8fbc393aec7a
Diameter
36162018
Circumference
113606330.08778
Area
1.0270585383871E+15
Volume
2.4760339568138E+22
Surface area
4.1082341535483E+15
Circumference
113606330.08778
Perimeter
72324036
Area
326922886458081
Diagonal
25570408.14919
Surface area
1961537318748486
Volume
5.9110956523545E+21
Space diagonal
31317226.24011
Perimeter
54243027
Area
1.4156176237562E+14
Altitude
15658613.120055
Surface area
1.4156176237562E+14
Volume
6.9662930333704E+20
Height
8523469.3830633