20502721 is an odd 8-digits composite number following 20502720
and preceding 20502722 . In scientific notation, it is written as 2.0502721 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20493652 positive integers (up to 20502721) that are relatively prime to 20502721.
20502721 has 4 divisors, whose sum is 20511792
The reverse of 20502721 is 12720502
Previous prime number is 4283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million five hundred two thousand seven hundred twenty-one
Scientific notation
2.0502721 × 10^7
Engineering notation
2.0502721 × 10^6
Prime Factorization
4283 × 4787
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20502721
Product of the distinct prime numbers
The prime factorization of 20502721 is 4283 × 4787.
Since it has a total of 2 prime factors.
2 , 6 , 58 , 74 , 663 , 377 , 370 , 5951 , 64821 , 81670 , 276303 , 158810 , 2883586 , 1587625 , 42168963 , 38018319 , 593607934 , 269014111 , 3574907005 , 5571650715
n×2
41005442
n×3
61508163
n×4
82010884
n×5
102513605
n÷2
10251360.5
n÷3
6834240.3333333
n÷3
5125680.25
n÷5
4100544.2
n2
420361568403841
n3
8.6185559561064E+21
n4
1.7670384819094E+29
n5
3.6229096990851E+36
2 √n
4527.9930432809
3 √n
273.69729210478
4 √n
67.29036367327
5 √n
28.997616397001
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
-20502720
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 20502721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20502721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001101100011000001
3
Ternary
1102120122110001
4
Quaternary
1032031203001
5
Quinary
20222041341
6
Senary
2011240001
8
Octal
116154301
10
Decimal
20502721
12
Duodecimal
6a49001
16
Hexadecimal
138d8c1
20
Vigesimal
682gg1
36
Base36
c7g01
md5
6223b7ecfc2f82f19eb69c81de91fa6c
sha1
1924c95e2b1cc70302ea4adab4a0183829bef954
sha256
a569d404499be1cb41f9b115cc7b909994e2cc0fc7426633f9a62a29cab7845c
sha512
b449f20381efa50e7d8e2cd29e0a3e7eef412a8f57e3ec202d1d0223c7cdff3626d60e19ba9837dc58d0f50dbefb48492aa273cadb7db0955ea2c4f778163bd8
ripemd-160
8df53d3462dff263723f917c78073dfcbe564bae
Diameter
41005442
Circumference
128822395.3444
Area
1.320604815149E+15
Volume
3.6101322768342E+22
Surface area
5.282419260596E+15
Circumference
128822395.3444
Perimeter
82010884
Area
420361568403841
Diagonal
28995226.103752
Surface area
2522169410423046
Volume
8.6185559561064E+21
Space diagonal
35511754.465409
Perimeter
61508163
Area
1.820218985062E+14
Altitude
17755877.232705
Surface area
1.820218985062E+14
Volume
1.0157065600998E+21
Height
9665075.3679172