18385621 is an odd 8-digits composite number following 18385620
and preceding 18385622 . In scientific notation, it is written as 1.8385621 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 18371500 positive integers (up to 18385621) that are relatively prime to 18385621.
18385621 has 4 divisors, whose sum is 18399744
The reverse of 18385621 is 12658381
Previous prime number is 1451
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million three hundred eighty-five thousand six hundred twenty-one
Scientific notation
1.8385621 × 10^7
Engineering notation
1.8385621 × 10^6
Prime Factorization
1451 × 12671
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18385621
Product of the distinct prime numbers
The prime factorization of 18385621 is 1451 × 12671.
Since it has a total of 2 prime factors.
6 , 6 , 80 , 5 , 643 , 747 , 7642 , 4921 , 87105 , 2197 , 999120 , 530593 , 6511704 , 1872982 , 71339687 , 76612860 , 443382076 , 49634635 , 2023763879 , 7381143881
n×2
36771242
n×3
55156863
n×4
73542484
n×5
91928105
n÷2
9192810.5
n÷3
6128540.3333333
n÷3
4596405.25
n÷5
3677124.2
n2
338031059555641
n3
6.2149109472184E+21
n4
1.1426499722431E+29
n5
2.1008329325322E+36
2 √n
4287.845729501
3 √n
263.93243698834
4 √n
65.481644218063
5 √n
28.372372997696
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
-18385620
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 18385621 can be divided by 4 positive divisors.
The sum of these divisors (counting 18385621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001000101011010101
3
Ternary
1021121002022221
4
Quaternary
1012020223111
5
Quinary
14201314441
6
Senary
1454022341
8
Octal
106105325
10
Decimal
18385621
12
Duodecimal
61a79b1
16
Hexadecimal
1188ad5
20
Vigesimal
5ei411
36
Base36
ay2fp
md5
977bc4308b5cdb28ae9385656781c23a
sha1
db55577e1eb5e262ea05b7cff5bcde1ac941eb68
sha256
520cee73af19b360ddc3605150134088f4611ee7b07f6a849b6ebe8b106c691a
sha512
7f5a3725b1768f20e2d37c854a617cc03ffad2009a4a129a37bfa3ddd917d01128a09263527ae7decf6fd8b9cbae250f93f3685ac71badace35e4fcf6e93861a
ripemd-160
2e795d74b48d628dcf029c3aca6c9d555ce20df3
Diameter
36771242
Circumference
115520263.73057
Area
1.0619558933852E+15
Volume
2.6032958099328E+22
Surface area
4.2478235735407E+15
Circumference
115520263.73057
Perimeter
73542484
Area
338031059555641
Diagonal
26001194.570852
Surface area
2028186357333846
Volume
6.2149109472184E+21
Space diagonal
31844829.700705
Perimeter
55156863
Area
1.4637174242168E+14
Altitude
15922414.850353
Surface area
1.4637174242168E+14
Volume
7.3243427920811E+20
Height
8667064.8569505