18082821 is an odd 8-digits composite number following 18082820
and preceding 18082822 . In scientific notation, it is written as 1.8082821 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12055212 positive integers (up to 18082821) that are relatively prime to 18082821.
18082821 has 4 divisors, whose sum is 24110432
The reverse of 18082821 is 12828081
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million eighty-two thousand eight hundred twenty-one
Scientific notation
1.8082821 × 10^7
Engineering notation
1.8082821 × 10^6
Prime Factorization
3 × 6027607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18082821
Product of the distinct prime numbers
The prime factorization of 18082821 is 3 × 6027607.
Since it has a total of 2 prime factors.
1 , 10 , 9 , 30 , 97 , 783 , 3641 , 8738 , 3757 , 8563 , 475183 , 672168 , 8287155 , 1755507 , 29570249 , 83657221 , 137755364 , 888403355 , 5956160723 , 2921618724
n×2
36165642
n×3
54248463
n×4
72331284
n×5
90414105
n÷2
9041410.5
n÷3
6027607
n÷3
4520705.25
n÷5
3616564.2
n2
326988415318041
n3
5.9128729832698E+21
n4
1.069214237522E+29
n5
1.9334409667762E+36
2 √n
4252.3900338516
3 √n
262.47547344541
4 √n
65.210352198493
5 √n
28.278296036409
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
-18082820
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 18082821 can be divided by 4 positive divisors.
The sum of these divisors (counting 18082821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100111110110000000101
3
Ternary
1021000200222010
4
Quaternary
1010332300011
5
Quinary
14112122241
6
Senary
1443324433
8
Octal
104766005
10
Decimal
18082821
12
Duodecimal
6080719
16
Hexadecimal
113ec05
20
Vigesimal
5d0711
36
Base36
arksl
md5
68833b467856f1a929213447b592f715
sha1
f4f6b0b3b7427f9f214b37d31b3558324b4c5364
sha256
33d67ff79c2e92d6e8152581a6d96c6d4e1e9fb472858c53bf7a705779f81231
sha512
9c33ec955dd4814e35f905a24be6586ecd7e81e424972ca87f863b5bae95a96c45b9d012dcad1038044aa8d66084e1235078c510c3594f35712690eb470198f0
ripemd-160
4f2582a94ee96b6be6dcfcd00e8149620b4b1942
Diameter
36165642
Circumference
113617715.21956
Area
1.0272644033721E+15
Volume
2.4767784434467E+22
Surface area
4.1090576134885E+15
Circumference
113617715.21956
Perimeter
72331284
Area
326988415318041
Diagonal
25572970.704165
Surface area
1961930491908246
Volume
5.9128729832698E+21
Space diagonal
31320364.716173
Perimeter
54248463
Area
1.4159013720432E+14
Altitude
15660182.358087
Surface area
1.4159013720432E+14
Volume
6.9683876379413E+20
Height
8524323.568055