21241909 is an odd 8-digits composite number following 21241908
and preceding 21241910 . In scientific notation, it is written as 2.1241909 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19607904 positive integers (up to 21241909) that are relatively prime to 21241909.
21241909 has 4 divisors, whose sum is 22875916
The reverse of 21241909 is 90914212
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred forty-one thousand nine hundred nine
Scientific notation
2.1241909 × 10^7
Engineering notation
2.1241909 × 10^6
Prime Factorization
13 × 1633993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21241909
Product of the distinct prime numbers
The prime factorization of 21241909 is 13 × 1633993.
Since it has a total of 2 prime factors.
9 , 1 , 8 , 22 , 64 , 622 , 43 , 5750 , 83722 , 49698 , 571953 , 528406 , 5139519 , 2090826 , 84990783 , 70057101 , 473716975 , 624679892 , 9509926674 , 9031233746
n×2
42483818
n×3
63725727
n×4
84967636
n×5
106209545
n÷2
10620954.5
n÷3
7080636.3333333
n÷3
5310477.25
n÷5
4248381.8
n2
451218697964281
n3
9.5847465212557E+21
n4
2.0359831339258E+29
n5
4.3248168456387E+36
2 √n
4608.894552927
3 √n
276.94775435554
4 √n
67.88883967875
5 √n
29.203755837588
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
-21241908
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 21241909 can be divided by 4 positive divisors.
The sum of these divisors (counting 21241909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010000000110101
3
Ternary
1110222012102101
4
Quaternary
1101002000311
5
Quinary
20414220114
6
Senary
2035142101
8
Octal
121020065
10
Decimal
21241909
12
Duodecimal
7144931
16
Hexadecimal
1442035
20
Vigesimal
6cf4f9
36
Base36
cnad1
md5
319f8e9135d42a8a94769fd1d9a876d1
sha1
4ca39529df512d704b83c9962c3b3082c3c5008a
sha256
768408d7c72ca917485465d3d1e1f6964b173d71bd28f5cf2237f27dc0279240
sha512
b9f4c17abe3cc386b4f7aee72cd4e43817fc9f48550761450fe989d046670cedeed148e4d02ab556b385ecbc59fca4cff986817929fe1c0790d0dc7629f05c59
ripemd-160
4d225e322fbb01abb032554b919e7e8fe3460759
Diameter
42483818
Circumference
133466850.52525
Area
1.4175453466869E+15
Volume
4.0148492343596E+22
Surface area
5.6701813867477E+15
Circumference
133466850.52525
Perimeter
84967636
Area
451218697964281
Diagonal
30040595.798495
Surface area
2707312187785686
Volume
9.5847465212557E+21
Space diagonal
36792065.637755
Perimeter
63725727
Area
1.953834275498E+14
Altitude
18396032.818877
Surface area
1.953834275498E+14
Volume
1.129573210189E+21
Height
10013531.932832