18408081 is an odd 8-digits composite number following 18408080
and preceding 18408082 . In scientific notation, it is written as 1.8408081 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12246080 positive integers (up to 18408081) that are relatively prime to 18408081.
18408081 has 8 divisors, whose sum is 24596064
The reverse of 18408081 is 18080481
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million four hundred eight thousand eighty-one
Scientific notation
1.8408081 × 10^7
Engineering notation
1.8408081 × 10^6
Prime Factorization
3 × 491 × 12497
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18408081
Product of the distinct prime numbers
The prime factorization of 18408081 is 3 × 491 × 12497.
Since it has a total of 3 prime factors.
6 , 7 , 98 , 99 , 593 , 427 , 1138 , 8569 , 622 , 19913 , 426157 , 487171 , 176858 , 3174873 , 60113675 , 38380005 , 120571404 , 501076663 , 7673977507 , 9483153998
n×2
36816162
n×3
55224243
n×4
73632324
n×5
92040405
n÷2
9204040.5
n÷3
6136027
n÷3
4602020.25
n÷5
3681616.2
n2
338857446102561
n3
6.2377153153091E+21
n4
1.1482436877915E+29
n5
2.1136962812605E+36
2 √n
4290.4639609254
3 √n
264.03986714274
4 √n
65.501633269144
5 √n
28.379301589786
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
-18408080
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 18408081 can be divided by 8 positive divisors.
The sum of these divisors (counting 18408081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001110001010010001
3
Ternary
1021122020010210
4
Quaternary
1012032022101
5
Quinary
14203024311
6
Senary
1454314333
8
Octal
106161221
10
Decimal
18408081
12
Duodecimal
61b89a9
16
Hexadecimal
118e291
20
Vigesimal
5f1041
36
Base36
ayjrl
md5
9b76797441aae51f2b3bb9ae79ddb4e5
sha1
1f38b8049a7f882d58cd5ef1037730db569cdcb2
sha256
a1ac9ded687abfe104c1f636b795b16c7c54e0c5665a0f29584a4b9761e5d3e7
sha512
7eb891e70a8ab0f3700617743d55bd434d2a5ad6fbc6d8d0d1112f0f91f27b8105721dce4c631be5de3bc712ab8c9c26081a1fa77b37ae439c2c7cc0f23ee2f6
ripemd-160
4ca130d571e2ca4e896aa10e25bf622210644538
Diameter
36816162
Circumference
115661384.07257
Area
1.06455206329E+15
Volume
2.6128480813013E+22
Surface area
4.25820825316E+15
Circumference
115661384.07257
Perimeter
73632324
Area
338857446102561
Diagonal
26032957.807462
Surface area
2033144676615366
Volume
6.2377153153091E+21
Space diagonal
31883731.561843
Perimeter
55224243
Area
1.4672957829317E+14
Altitude
15941865.780922
Surface area
1.4672957829317E+14
Volume
7.3512179976104E+20
Height
8677652.6024875