18086821 is an odd 8-digits composite number following 18086820
and preceding 18086822 . In scientific notation, it is written as 1.8086821 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17597952 positive integers (up to 18086821) that are relatively prime to 18086821.
18086821 has 4 divisors, whose sum is 18575692
The reverse of 18086821 is 12868081
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million eighty-six thousand eight hundred twenty-one
Scientific notation
1.8086821 × 10^7
Engineering notation
1.8086821 × 10^6
Prime Factorization
37 × 488833
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18086821
Product of the distinct prime numbers
The prime factorization of 18086821 is 37 × 488833.
Since it has a total of 2 prime factors.
3 , 8 , 77 , 46 , 684 , 216 , 977 , 3487 , 63512 , 95084 , 452130 , 383108 , 914089 , 9703409 , 28647874 , 4184834 , 799659682 , 556860717 , 2938757802 , 5595201820
n×2
36173642
n×3
54260463
n×4
72347284
n×5
90434105
n÷2
9043410.5
n÷3
6028940.3333333
n÷3
4521705.25
n÷5
3617364.2
n2
327133093886041
n3
5.916797712293E+21
n4
1.0701606111545E+29
n5
1.9355803415203E+36
2 √n
4252.8603315886
3 √n
262.49482559717
4 √n
65.213958103987
5 √n
28.279546982564
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
-18086820
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 18086821 can be divided by 4 positive divisors.
The sum of these divisors (counting 18086821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100111111101110100101
3
Ternary
1021000220110021
4
Quaternary
1010333232211
5
Quinary
14112234241
6
Senary
1443355141
8
Octal
104775645
10
Decimal
18086821
12
Duodecimal
6082ab1
16
Hexadecimal
113fba5
20
Vigesimal
5d0h11
36
Base36
arnvp
md5
d83058e71d1c390c6d9211ee0d278bf1
sha1
ec2821d21a013628a87689fcbbd603d0d47664fd
sha256
96d1a102e000f9d3037c6f66e0dceed5339b5fb8952eb73c846ca5347fc40d6c
sha512
0cdc091a2c65a564b2c34dae37fb8008993ac7df2dc3a427c72f17cc3a7875e25c5a53770b7bbb7bc810dddb7f2171fa62b503974d040705385e9b0bdfe15c30
ripemd-160
f57fc408316510f0403b416d8679d66395294fd4
Diameter
36173642
Circumference
113642847.96079
Area
1.0277189244985E+15
Volume
2.4784224300956E+22
Surface area
4.1108756979939E+15
Circumference
113642847.96079
Perimeter
72347284
Area
327133093886041
Diagonal
25578627.558415
Surface area
1962798563316246
Volume
5.916797712293E+21
Space diagonal
31327292.919404
Perimeter
54260463
Area
1.4165278486196E+14
Altitude
15663646.459702
Surface area
1.4165278486196E+14
Volume
6.9730129754524E+20
Height
8526209.1861382