18081660 is an even 8-digits composite number following 18081659
and preceding 18081661 . In scientific notation, it is written as 1.8081660 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 4821760 positive integers (up to 18081660) that are relatively prime to 18081660.
18081660 has 12 divisors, whose sum is 33752544
The reverse of 18081660 is 06618081
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million eighty-one thousand six hundred sixty
Scientific notation
1.8081660 × 10^7
Engineering notation
1.8081660 × 10^6
Prime Factorization
2 × 2 × 15 × 301361
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9040830
Product of the distinct prime numbers
The prime factorization of 18081660 is 2 × 2 × 15 × 301361.
Since it has a total of 4 prime factors.
1 , 3 , 16 , 98 , 826 , 569 , 8123 , 5470 , 9976 , 37363 , 747372 , 789109 , 1921768 , 8768050 , 2516823 , 89699369 , 629982124 , 216542934 , 2366668670 , 2576723152
n×2
36163320
n×3
54244980
n×4
72326640
n×5
90408300
n÷2
9040830
n÷3
6027220
n÷3
4520415
n÷5
3616332
n2
326946428355600
n3
5.9117341557403E+21
n4
1.0689396701448E+29
n5
1.9328203676071E+36
2 √n
4252.2535201937
3 √n
262.46985594899
4 √n
65.209305472407
5 √n
28.277932907836
1 , 2 , 4 , 15 , 30 , 60 , 301361 , 602722 , 1205444 , 4520415 , 9040830 , 18081660
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18081659
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18081660 can be divided by 12 positive divisors.
The sum of these divisors (counting 18081660) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000100111110011101111100
3
Ternary
1021000122101010
4
Quaternary
1010332131330
5
Quinary
14112103120
6
Senary
1443315220
8
Octal
104763574
10
Decimal
18081660
12
Duodecimal
607bb10
16
Hexadecimal
113e77c
20
Vigesimal
5d0430
36
Base36
arjwc
md5
289d0bdab219ce2fd40b735d51a52b96
sha1
adf3ab8dba811c79433b4c6bfbbc0a95a0ef92db
sha256
b2bf4cc966455e12550408cda005b023547f4461edcb8e956767371a876c3896
sha512
3c8398188df30308b79f2fd48b9b6471df206486f8ba2d092845fbc9ec450b5f4a2d549a45d139c0d6326070c56677cef87de255c08478c92aa26ca1fc751414
ripemd-160
b698bfbbd835b3f2eacfbc9166c4149dbd62e4ab
Diameter
36163320
Circumference
113610420.44142
Area
1.0271324974394E+15
Volume
2.4763014124866E+22
Surface area
4.1085299897575E+15
Circumference
113610420.44142
Perimeter
72326640
Area
326946428355600
Diagonal
25571328.802219
Surface area
1961678570133600
Volume
5.9117341557403E+21
Space diagonal
31318353.805186
Perimeter
54244980
Area
1.4157195631627E+14
Altitude
15659176.902593
Surface area
1.4157195631627E+14
Volume
6.9670455168268E+20
Height
8523776.2674064