21081441 is an odd 8-digits composite number following 21081440
and preceding 21081442 . In scientific notation, it is written as 2.1081441 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 14054292 positive integers (up to 21081441) that are relatively prime to 21081441.
21081441 has 4 divisors, whose sum is 28108592
The reverse of 21081441 is 14418012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eighty-one thousand four hundred forty-one
Scientific notation
2.1081441 × 10^7
Engineering notation
2.1081441 × 10^6
Prime Factorization
3 × 7027147
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21081441
Product of the distinct prime numbers
The prime factorization of 21081441 is 3 × 7027147.
Since it has a total of 2 prime factors.
2 , 1 , 75 , 27 , 320 , 741 , 5102 , 4574 , 29785 , 81210 , 963797 , 596980 , 4236137 , 6183722 , 27288427 , 55221199 , 558375870 , 53827036 , 919960146 , 3197036501
n×2
42162882
n×3
63244323
n×4
84325764
n×5
105407205
n÷2
10540720.5
n÷3
7027147
n÷3
5270360.25
n÷5
4216288.2
n2
444427154636481
n3
9.3691648392669E+21
n4
1.9751549577828E+29
n5
4.1639112708355E+36
2 √n
4591.4530379826
3 √n
276.24860765185
4 √n
67.760261495825
5 √n
29.159499048523
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
-21081440
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 21081441 can be divided by 4 positive divisors.
The sum of these divisors (counting 21081441) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011010110101100001
3
Ternary
1110200001022010
4
Quaternary
1100122311201
5
Quinary
20344101231
6
Senary
2031503133
8
Octal
120326541
10
Decimal
21081441
12
Duodecimal
7087aa9
16
Hexadecimal
141ad61
20
Vigesimal
6bf3c1
36
Base36
cjujl
md5
a3fbeae73049e1e8a8c166592a024100
sha1
75e8c9204aa035ea66de3d99e2359d653064340e
sha256
8ccad9199ae5d3e557a079efe46f5f795efaa74ba3dd956537c03acbcb5acf2f
sha512
65f1061db651b130a778acdfc836385cd5f2a884226fa6d5c3c4cf7e22db64ac17b634c060ce4801eafcba371f3e57817d367bfa811a2371452579aa542e557e
ripemd-160
4dda51333fd620532a69e727ac20f4612c57b749
Diameter
42162882
Circumference
132458600.34537
Area
1.3962090840618E+15
Volume
3.924546590575E+22
Surface area
5.5848363362471E+15
Circumference
132458600.34537
Perimeter
84325764
Area
444427154636481
Diagonal
29813659.776568
Surface area
2666562927818886
Volume
9.3691648392669E+21
Space diagonal
36514126.908766
Perimeter
63244323
Area
1.9244260302341E+14
Altitude
18257063.454383
Surface area
1.9244260302341E+14
Volume
1.1041666653167E+21
Height
9937886.5921894