18421805 is an odd 8-digits composite number following 18421804
and preceding 18421806 . In scientific notation, it is written as 1.8421805 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 14691600 positive integers (up to 18421805) that are relatively prime to 18421805.
18421805 has 8 divisors, whose sum is 22174944
The reverse of 18421805 is 50812481
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million four hundred twenty-one thousand eight hundred five
Scientific notation
1.8421805 × 10^7
Engineering notation
1.8421805 × 10^6
Prime Factorization
5 × 331 × 11131
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18421805
Product of the distinct prime numbers
The prime factorization of 18421805 is 5 × 331 × 11131.
Since it has a total of 3 prime factors.
9 , 1 , 47 , 35 , 177 , 369 , 6205 , 8385 , 12927 , 73610 , 83616 , 197902 , 1845207 , 1479986 , 53343804 , 75270634 , 344913423 , 153657616 , 7002130936 , 6876334320
n×2
36843610
n×3
55265415
n×4
73687220
n×5
92109025
n÷2
9210902.5
n÷3
6140601.6666667
n÷3
4605451.25
n÷5
3684361
n2
339362899458025
n3
6.2516771580503E+21
n4
1.1516717752856E+29
n5
2.1215872868315E+36
2 √n
4292.0630237684
3 √n
264.10546845797
4 √n
65.51383841425
5 √n
28.383531921434
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18421804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18421805 can be divided by 8 positive divisors.
The sum of these divisors (counting 18421805) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110010001100000101101
3
Ternary
1021122220222002
4
Quaternary
1012101200231
5
Quinary
14203444210
6
Senary
1454502045
8
Octal
106214055
10
Decimal
18421805
12
Duodecimal
6204925
16
Hexadecimal
119182d
20
Vigesimal
5f2ea5
36
Base36
ayuct
md5
c711481427df888bc997c8254868cc2e
sha1
6dae2c0fed0383f604801395a18579ea5a616aa3
sha256
f30e35408ed0c73ad407e90aedb4ed2820c298bd919f27c6d866be9be010b577
sha512
49c2805f5794f428a19ed445a026a8b3912aad75262e3734b3d9206500fa425009a20314999ca92db751196aa691b97c9f272d505d7ff6a5aeebd5cc1e83be2d
ripemd-160
b4ed013badd3b5c50672152ffa13a8d6f5bd645e
Diameter
36843610
Circumference
115747614.50773
Area
1.0661399918383E+15
Volume
2.6186964043128E+22
Surface area
4.2645599673531E+15
Circumference
115747614.50773
Perimeter
73687220
Area
339362899458025
Diagonal
26052366.474392
Surface area
2036177396748150
Volume
6.2516771580503E+21
Space diagonal
31907502.227126
Perimeter
55265415
Area
1.469484460163E+14
Altitude
15953751.113563
Surface area
1.469484460163E+14
Volume
7.3676721870774E+20
Height
8684122.1581308