18308909 is an odd 8-digits prime number following 18308908
and preceding 18308910 . In scientific notation, it is written as 1.8308909 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 18308908 positive integers (up to 18308909) that are relatively prime to 18308909.
18308909 has 2 divisors, whose sum is 18308910
The reverse of 18308909 is 90980381
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million three hundred eight thousand nine hundred nine
Scientific notation
1.8308909 × 10^7
Engineering notation
1.8308909 × 10^6
Prime Factorization
18308909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18308909
Product of the distinct prime numbers
The prime factorization of 18308909 is 18308909.
Since it has a total of 1 prime factors.
7 , 1 , 83 , 93 , 593 , 658 , 1849 , 8717 , 58872 , 54233 , 35280 , 40971 , 7269677 , 836924 , 4530097 , 46036664 , 152429982 , 939761449 , 2125657149 , 5206378083
n×2
36617818
n×3
54926727
n×4
73235636
n×5
91544545
n÷2
9154454.5
n÷3
6102969.6666667
n÷3
4577227.25
n÷5
3661781.8
n2
335216148770281
n3
6.1374419631655E+21
n4
1.1236986639638E+29
n5
2.0573696581935E+36
2 √n
4278.8910946646
3 √n
263.56484882929
4 √n
65.413233329844
5 √n
28.348657257185
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18308910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9154455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4278.8912115173
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998907636
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18308909 can be divided by 2 positive divisors.
The sum of these divisors (counting 18308909) is 18308910, the average is 9154455.
Base
System
Value
2
Binary
1000101110101111100101101
3
Ternary
1021110012002202
4
Quaternary
1011311330231
5
Quinary
14141341114
6
Senary
1452231245
8
Octal
105657455
10
Decimal
18308909
12
Duodecimal
616b525
16
Hexadecimal
1175f2d
20
Vigesimal
5e8c59
36
Base36
awf8t
md5
4cca3ba156be71cfb1aa8e3d0eb9d60b
sha1
8013b00d31d0287313f937350076a5e0b761413c
sha256
89bfc51335a9b4547fb23c66807bb01ad5e7e04137c0200b61df2b37089dadcb
sha512
308d5c3075fcd655eeba5de97df92b72260ecef36240ac33f851b54366cbd1a3b7665bd38b04caaa5627d547114b00feb114431e10adf44c1fce5fe0c26874d4
ripemd-160
5669f29c16d8bdc4a6b222b1131a5dffae1c37e3
Diameter
36617818
Circumference
115038268.01929
Area
1.0531125903414E+15
Volume
2.5708456777753E+22
Surface area
4.2124503613655E+15
Circumference
115038268.01929
Perimeter
73235636
Area
335216148770281
Diagonal
25892707.420055
Surface area
2011296892621686
Volume
6.1374419631655E+21
Space diagonal
31711960.619155
Perimeter
54926727
Area
1.4515285029692E+14
Altitude
15855980.309578
Surface area
1.4515285029692E+14
Volume
7.233044718822E+20
Height
8630902.4733516