18489809 is an odd 8-digits composite number following 18489808
and preceding 18489810 . In scientific notation, it is written as 1.8489809 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 17067504 positive integers (up to 18489809) that are relatively prime to 18489809.
18489809 has 4 divisors, whose sum is 19912116
The reverse of 18489809 is 90898481
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million four hundred eighty-nine thousand eight hundred nine
Scientific notation
1.8489809 × 10^7
Engineering notation
1.8489809 × 10^6
Prime Factorization
13 × 1422293
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18489809
Product of the distinct prime numbers
The prime factorization of 18489809 is 13 × 1422293.
Since it has a total of 2 prime factors.
2 , 9 , 19 , 28 , 1000 , 889 , 7726 , 3696 , 51051 , 62750 , 412575 , 763403 , 3760700 , 5115291 , 94386930 , 96159994 , 687428669 , 76896220 , 5691377570 , 3352450320
n×2
36979618
n×3
55469427
n×4
73959236
n×5
92449045
n÷2
9244904.5
n÷3
6163269.6666667
n÷3
4622452.25
n÷5
3697961.8
n2
341873036856481
n3
6.3211671537263E+21
n4
1.1687717332947E+29
n5
2.1610366113218E+36
2 √n
4299.9777906403
3 √n
264.43005072082
4 √n
65.574215898021
5 √n
28.404456579806
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
-18489808
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 18489809 can be divided by 4 positive divisors.
The sum of these divisors (counting 18489809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110100010000111010001
3
Ternary
1021210101020202
4
Quaternary
1012202013101
5
Quinary
14213133214
6
Senary
1500144545
8
Octal
106420721
10
Decimal
18489809
12
Duodecimal
6238155
16
Hexadecimal
11a21d1
20
Vigesimal
5fb4a9
36
Base36
b0att
md5
7ffebed4ea366cfeb45f913b1fdf85e8
sha1
2c889c6444dfde89ce6c93d77ca5f255997da5f2
sha256
8ed3742f4356a44db6ca06f7458b3be3bedf74fc20ab8fa9da0fc7144ada614f
sha512
7a4a3c96748eb41e4332026dcee353e8a2ec939738a2eab993dd45a00da6acf975bdb8ebf1423e5bb9b4e5d97f64cb5cdc5aae682b458f6f4a3c7b7931359dcc
ripemd-160
75fa26467f2c5fbff31f9aeef52f2099c3f2fe22
Diameter
36979618
Circumference
116174896.24136
Area
1.0740258210488E+15
Volume
2.6478043056346E+22
Surface area
4.296103284195E+15
Circumference
116174896.24136
Perimeter
73959236
Area
341873036856481
Diagonal
26148538.653488
Surface area
2051238221138886
Volume
6.3211671537263E+21
Space diagonal
32025288.610244
Perimeter
55469427
Area
1.4803536739332E+14
Altitude
16012644.305122
Surface area
1.4803536739332E+14
Volume
7.4495669323559E+20
Height
8716179.5511627