21039765 is an odd 8-digits composite number following 21039764
and preceding 21039766 . In scientific notation, it is written as 2.1039765 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 10947200 positive integers (up to 21039765) that are relatively prime to 21039765.
21039765 has 16 divisors, whose sum is 34485696
The reverse of 21039765 is 56793012
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million thirty-nine thousand seven hundred sixty-five
Scientific notation
2.1039765 × 10^7
Engineering notation
2.1039765 × 10^6
Prime Factorization
5 × 3 × 41 × 34211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21039765
Product of the distinct prime numbers
The prime factorization of 21039765 is 5 × 3 × 41 × 34211.
Since it has a total of 4 prime factors.
8 , 2 , 62 , 56 , 536 , 437 , 3296 , 1220 , 22366 , 79576 , 355017 , 203837 , 8266035 , 1045448 , 94254638 , 36396493 , 815527993 , 104799948 , 4763713036 , 915991103
n×2
42079530
n×3
63119295
n×4
84159060
n×5
105198825
n÷2
10519882.5
n÷3
7013255
n÷3
5259941.25
n÷5
4207953
n2
442671711255225
n3
9.3137087769578E+21
n4
1.9595824394563E+29
n5
4.1229154024287E+36
2 √n
4586.912360183
3 √n
276.06644850413
4 √n
67.726747745503
5 √n
29.147960810714
1 , 3 , 5 , 15 , 41 , 123 , 205 , 615 , 34211 , 102633 , 171055 , 513165 , 1402651 , 4207953 , 7013255 , 21039765
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21039764
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21039765 can be divided by 16 positive divisors.
The sum of these divisors (counting 21039765) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000010000101010010101
3
Ternary
1110120221010120
4
Quaternary
1100100222111
5
Quinary
20341233030
6
Senary
2030542153
8
Octal
120205225
10
Decimal
21039765
12
Duodecimal
7067959
16
Hexadecimal
1410a95
20
Vigesimal
6b9j85
36
Base36
ciydx
md5
fad1ac1de8a9066654a1a0b038642726
sha1
4dc054c8023c9f6bcdb300dc0220152adc256cf0
sha256
c704b9a01b648f60d096030fe9f139def44b3aa715004e872ece3aaf1b6fc1ab
sha512
6019455863e8e344e6c9107aa90b572533b18075bd74adadb53c0440cb7f1cca383227b4eef5b3b37991f2018c4a57954fbb951f6544f096bf728bb82c6ba254
ripemd-160
55bdfb3263344aa49b794befbf6f11402fc61d0c
Diameter
42079530
Circumference
132196742.31451
Area
1.3906941960314E+15
Volume
3.9013172095154E+22
Surface area
5.5627767841257E+15
Circumference
132196742.31451
Perimeter
84159060
Area
442671711255225
Diagonal
29754721.012143
Surface area
2656030267531350
Volume
9.3137087769578E+21
Space diagonal
36441941.959309
Perimeter
63119295
Area
1.9168247374188E+14
Altitude
18220970.979655
Surface area
1.9168247374188E+14
Volume
1.0976311056973E+21
Height
9918240.3373809