20804728 is an even 8-digits composite number following 20804727
and preceding 20804729 . In scientific notation, it is written as 2.0804728 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 8916288 positive integers (up to 20804728) that are relatively prime to 20804728.
20804728 has 16 divisors, whose sum is 44581680
The reverse of 20804728 is 82740802
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred four thousand seven hundred twenty-eight
Scientific notation
2.0804728 × 10^7
Engineering notation
2.0804728 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 371513
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5201182
Product of the distinct prime numbers
The prime factorization of 20804728 is 2 × 2 × 2 × 7 × 371513.
Since it has a total of 5 prime factors.
7 , 2 , 5 , 82 , 424 , 993 , 1311 , 5462 , 70057 , 35428 , 321964 , 370797 , 23653 , 5898530 , 59586221 , 79169335 , 72177596 , 813830270 , 252483418 , 7540996293
n×2
41609456
n×3
62414184
n×4
83218912
n×5
104023640
n÷2
10402364
n÷3
6934909.3333333
n÷3
5201182
n÷5
4160945.6
n2
432836707153984
n3
9.0050499607543E+21
n4
1.873476150599E+29
n5
3.89771617277E+36
2 √n
4561.2200122336
3 √n
275.03460941824
4 √n
67.53680487137
5 √n
29.082544978968
1 , 2 , 4 , 7 , 8 , 14 , 28 , 56 , 371513 , 743026 , 1486052 , 2600591 , 2972104 , 5201182 , 10402364 , 20804728
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
-20804727
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 20804728 can be divided by 16 positive divisors.
The sum of these divisors (counting 20804728) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111010001111000
3
Ternary
1110010222201111
4
Quaternary
1033113101320
5
Quinary
20311222403
6
Senary
2021530104
8
Octal
117272170
10
Decimal
20804728
12
Duodecimal
6b73934
16
Hexadecimal
13d7478
20
Vigesimal
6a0bg8
36
Base36
cdx14
md5
332a0e4804247de843b49a0ef7aafb0a
sha1
ca8da082d807856e8c8ba5658e434effa9d150d4
sha256
20977801964cb0e924e55f6626eaf1bcdb736762e11dd9f09c5903dc76bc7a27
sha512
f306809862651dae09335f33540cf23cab37154a7c60c0966b859bde3b06792db740848b970f416eb4b5023faa0f053b7b4e7763380efd79e2e9152452bba7b3
ripemd-160
06f2a4fa82d030fad83b388b362f66c1fbc0b6f3
Diameter
41609456
Circumference
130719961.28947
Area
1.359796619399E+15
Volume
3.772026506922E+22
Surface area
5.4391864775958E+15
Circumference
130719961.28947
Perimeter
83218912
Area
432836707153984
Diagonal
29422328.499083
Surface area
2597020242923904
Volume
9.0050499607543E+21
Space diagonal
36034845.933651
Perimeter
62414184
Area
1.8742379204288E+14
Altitude
18017422.966825
Surface area
1.8742379204288E+14
Volume
1.0612553153622E+21
Height
9807442.8330278