21090561 is an odd 8-digits composite number following 21090560
and preceding 21090562 . In scientific notation, it is written as 2.1090561 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14043120 positive integers (up to 21090561) that are relatively prime to 21090561.
21090561 has 8 divisors, whose sum is 28155264
The reverse of 21090561 is 16509012
Previous prime number is 911
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million ninety thousand five hundred sixty-one
Scientific notation
2.1090561 × 10^7
Engineering notation
2.1090561 × 10^6
Prime Factorization
3 × 911 × 7717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21090561
Product of the distinct prime numbers
The prime factorization of 21090561 is 3 × 911 × 7717.
Since it has a total of 3 prime factors.
10 , 5 , 8 , 58 , 416 , 225 , 5366 , 9223 , 65504 , 50242 , 941427 , 705162 , 862620 , 8919317 , 62511451 , 57754762 , 755515540 , 839384857 , 9413093743 , 7621698071
n×2
42181122
n×3
63271683
n×4
84362244
n×5
105452805
n÷2
10545280.5
n÷3
7030187
n÷3
5272640.25
n÷5
4218112.2
n2
444811763294721
n3
9.3813296272849E+21
n4
1.9785750476536E+29
n5
4.1729257735616E+36
2 √n
4592.4460802496
3 √n
276.28843769457
4 √n
67.767588715031
5 √n
29.162021538567
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
-21090560
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 21090561 can be divided by 8 positive divisors.
The sum of these divisors (counting 21090561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011101000100000001
3
Ternary
1110200111210220
4
Quaternary
1100131010001
5
Quinary
20344344221
6
Senary
2032013253
8
Octal
120350401
10
Decimal
21090561
12
Duodecimal
7091229
16
Hexadecimal
141d101
20
Vigesimal
6bg681
36
Base36
ck1kx
md5
33b5d77fa1ac92492e78d2109c29ecae
sha1
2edc9cc556b3f56ad650c74ae3ca69849115fbf3
sha256
50e7c9175ef30ad0a0980d64da283523a55ef2578e2854c140e5ddf323b3b1dd
sha512
55a88534f2eae17c95be2563b64df0f8b6676db219573af755b5d88182516d71eaf147aee90fecca94d9ae8966fb7894812271a97aca7ab4e2c07eeb64d3caf8
ripemd-160
113d17dc5e3542915bfc76b733b09e8a2c5a74bc
Diameter
42181122
Circumference
132515902.99537
Area
1.397417367797E+15
Volume
3.9296421650643E+22
Surface area
5.5896694711881E+15
Circumference
132515902.99537
Perimeter
84362244
Area
444811763294721
Diagonal
29826557.404257
Surface area
2668870579768326
Volume
9.3813296272849E+21
Space diagonal
36529923.212131
Perimeter
63271683
Area
1.9260914345769E+14
Altitude
18264961.606065
Surface area
1.9260914345769E+14
Volume
1.1056002993332E+21
Height
9942185.801419