18809909 is an odd 8-digits composite number following 18809908
and preceding 18809910 . In scientific notation, it is written as 1.8809909 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 18683520 positive integers (up to 18809909) that are relatively prime to 18809909.
18809909 has 4 divisors, whose sum is 18936300
The reverse of 18809909 is 90990881
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million eight hundred nine thousand nine hundred nine
Scientific notation
1.8809909 × 10^7
Engineering notation
1.8809909 × 10^6
Prime Factorization
149 × 126241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18809909
Product of the distinct prime numbers
The prime factorization of 18809909 is 149 × 126241.
Since it has a total of 2 prime factors.
5 , 7 , 99 , 99 , 360 , 438 , 1358 , 4279 , 43189 , 86224 , 230609 , 623110 , 7055585 , 2432193 , 24377441 , 48666499 , 288024367 , 636111045 , 9074459817 , 1008076886
n×2
37619818
n×3
56429727
n×4
75239636
n×5
94049545
n÷2
9404954.5
n÷3
6269969.6666667
n÷3
4702477.25
n÷5
3761981.8
n2
353812676588281
n3
6.655184249672E+21
n4
1.2518341011456E+29
n5
2.3546885525646E+36
2 √n
4337.0391974249
3 √n
265.94728731039
4 √n
65.856200903369
5 √n
28.50213146383
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18809908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18809909 can be divided by 4 positive divisors.
The sum of these divisors (counting 18809909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111110000010000110101
3
Ternary
1022101122100022
4
Quaternary
1013300100311
5
Quinary
14303404114
6
Senary
1511054525
8
Octal
107602065
10
Decimal
18809909
12
Duodecimal
6371445
16
Hexadecimal
11f0435
20
Vigesimal
5hb4f9
36
Base36
b75th
md5
19fe748ffcaf8380ef546fc1c604371b
sha1
b52cd3aaaa080fb9a527284a7f3a1d4c8ddbad34
sha256
0430e01b7fb8caa3d3af93de0bba027ab6b9e5b3ac082cfb48db1a2dd9398a58
sha512
6eef9532741a174d326c21c4060de71d022b92fc77a91cf8ca7499f39eafe06896ee5f0c6c87753cfc1bc02ff4f35af04175a042903c5a4badc8fcdf0e954e8e
ripemd-160
75e9df0761c46a224859c613e1d485ae05ec0d4d
Diameter
37619818
Circumference
118186143.85819
Area
1.1115353055167E+15
Volume
2.7877170596075E+22
Surface area
4.4461412220667E+15
Circumference
118186143.85819
Perimeter
75239636
Area
353812676588281
Diagonal
26601228.414804
Surface area
2122876059529686
Volume
6.655184249672E+21
Space diagonal
32579718.073747
Perimeter
56429727
Area
1.5320538305321E+14
Altitude
16289859.036874
Surface area
1.5320538305321E+14
Volume
7.8432098549816E+20
Height
8867076.1382679