20728049 is an odd 8-digits composite number following 20728048
and preceding 20728050 . In scientific notation, it is written as 2.0728049 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19508736 positive integers (up to 20728049) that are relatively prime to 20728049.
20728049 has 4 divisors, whose sum is 21947364
The reverse of 20728049 is 94082702
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred twenty-eight thousand forty-nine
Scientific notation
2.0728049 × 10^7
Engineering notation
2.0728049 × 10^6
Prime Factorization
17 × 1219297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20728049
Product of the distinct prime numbers
The prime factorization of 20728049 is 17 × 1219297.
Since it has a total of 2 prime factors.
2 , 7 , 64 , 62 , 294 , 202 , 8132 , 949 , 54411 , 43876 , 326224 , 487772 , 7273438 , 6686179 , 14559375 , 35192809 , 691735437 , 309466997 , 5477928016 , 8464623248
n×2
41456098
n×3
62184147
n×4
82912196
n×5
103640245
n÷2
10364024.5
n÷3
6909349.6666667
n÷3
5182012.25
n÷5
4145609.8
n2
429652015346401
n3
8.905848027049E+21
n4
1.8460085429122E+29
n5
3.8264155531904E+36
2 √n
4552.8067167408
3 √n
274.69629943773
4 √n
67.474489377399
5 √n
29.061075672685
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
-20728048
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 20728049 can be divided by 4 positive divisors.
The sum of these divisors (counting 20728049) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000100100011110001
3
Ternary
1110000002112112
4
Quaternary
1033010203301
5
Quinary
20301244144
6
Senary
2020135105
8
Octal
117044361
10
Decimal
20728049
12
Duodecimal
6b37495
16
Hexadecimal
13c48f1
20
Vigesimal
69b029
36
Base36
cc9v5
md5
9d9d38fcd9028412b8d2d695bc73545c
sha1
3c8970390abc0d325d8d988c0b0e70fda32100be
sha256
644af54841b50f5bee58edc75a48b1012b54c9c57196f9642dfe1f9d9d45a525
sha512
fbafd7f6beacda381e9833c58a2ca0f17753fd7ee07af903ba2a5106d5a97c9710024aa98c46b5bcd1b240c121c5bcd1c59989a1a15b5d2378d51c94662d8434
ripemd-160
882966693be34be666ad783afb71cd09a268d2a4
Diameter
41456098
Circumference
130238172.9233
Area
1.3497916150123E+15
Volume
3.7304728981019E+22
Surface area
5.3991664600492E+15
Circumference
130238172.9233
Perimeter
82912196
Area
429652015346401
Diagonal
29313888.017334
Surface area
2577912092078406
Volume
8.905848027049E+21
Space diagonal
35902034.009777
Perimeter
62184147
Area
1.8604478003858E+14
Altitude
17951017.004889
Surface area
1.8604478003858E+14
Volume
1.0495642553572E+21
Height
9771296.005778