20728519 is an odd 8-digits composite number following 20728518
and preceding 20728520 . In scientific notation, it is written as 2.0728519 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 17622360 positive integers (up to 20728519) that are relatively prime to 20728519.
20728519 has 16 divisors, whose sum is 24371200
The reverse of 20728519 is 91582702
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seven hundred twenty-eight thousand five hundred nineteen
Scientific notation
2.0728519 × 10^7
Engineering notation
2.0728519 × 10^6
Prime Factorization
49 × 7 × 271 × 223
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20728519
Product of the distinct prime numbers
The prime factorization of 20728519 is 49 × 7 × 271 × 223.
Since it has a total of 4 prime factors.
2 , 9 , 34 , 18 , 733 , 272 , 3058 , 6575 , 90533 , 1260 , 694719 , 295560 , 8559141 , 6853818 , 41771053 , 47589319 , 839513784 , 708395380 , 3285774721 , 573278764
n×2
41457038
n×3
62185557
n×4
82914076
n×5
103642595
n÷2
10364259.5
n÷3
6909506.3333333
n÷3
5182129.75
n÷5
4145703.8
n2
429671499933361
n3
8.9064538501272E+21
n4
1.8461759785498E+29
n5
3.8268493848714E+36
2 √n
4552.8583329596
3 √n
274.69837563064
4 √n
67.474871863232
5 √n
29.061207461082
1 , 7 , 49 , 223 , 271 , 343 , 1561 , 1897 , 10927 , 13279 , 60433 , 76489 , 92953 , 423031 , 2961217 , 20728519
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
-20728518
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 20728519 can be divided by 16 positive divisors.
The sum of these divisors (counting 20728519) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000100101011000111
3
Ternary
1110000010011221
4
Quaternary
1033010223013
5
Quinary
20301303034
6
Senary
2020141211
8
Octal
117045307
10
Decimal
20728519
12
Duodecimal
6b37807
16
Hexadecimal
13c4ac7
20
Vigesimal
69b15j
36
Base36
cca87
md5
6ce795d790fc6c73b044b69a43300ffa
sha1
6b690b6ed01bdf2542a54c5a4af3b0f1038a924d
sha256
f7792c02e7b9848ca577d74f7e78dab751b3cf80325be50dd3e2b9498e56b448
sha512
85645aab935a70023fa87fab5a456021c3427fdca16f3f9432b9bbfeea746d7aa501e336b31d048afcbd607bc28d741e22bd8ab8ba55a84d0831c21c56880c57
ripemd-160
855393020590a12d8371367eb044b4c8a9dad595
Diameter
41457038
Circumference
130241126.02039
Area
1.3498528276476E+15
Volume
3.7307266646795E+22
Surface area
5.3994113105902E+15
Circumference
130241126.02039
Perimeter
82914076
Area
429671499933361
Diagonal
29314552.697708
Surface area
2578028999600166
Volume
8.9064538501272E+21
Space diagonal
35902848.073657
Perimeter
62185557
Area
1.8605321711223E+14
Altitude
17951424.036828
Surface area
1.8605321711223E+14
Volume
1.0496356522917E+21
Height
9771517.5659028