20081728 is an even 8-digits composite number following 20081727
and preceding 20081729 . In scientific notation, it is written as 2.0081728 × 10^7.
The sum of its digits is 28. It has a total of 7 prime factors and 14 positive divisors.
There are 10040832 positive integers (up to 20081728) that are relatively prime to 20081728.
20081728 has 14 divisors, whose sum is 39849806
The reverse of 20081728 is 82718002
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eighty-one thousand seven hundred twenty-eight
Scientific notation
2.0081728 × 10^7
Engineering notation
2.0081728 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 313777
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
627554
Product of the distinct prime numbers
The prime factorization of 20081728 is 2 × 2 × 2 × 2 × 2 × 2 × 313777.
Since it has a total of 7 prime factors.
8 , 5 , 66 , 14 , 243 , 460 , 1177 , 1541 , 5534 , 10418 , 390602 , 950622 , 6209089 , 4455428 , 81361853 , 51121981 , 507067872 , 927564696 , 4405560968 , 9643742300
n×2
40163456
n×3
60245184
n×4
80326912
n×5
100408640
n÷2
10040864
n÷3
6693909.3333333
n÷3
5020432
n÷5
4016345.6
n2
403275799465984
n3
8.0984749138584E+21
n4
1.6263137043493E+29
n5
3.2659189453415E+36
2 √n
4481.2641073697
3 √n
271.81099903636
4 √n
66.942244564772
5 √n
28.877541462105
1 , 2 , 4 , 8 , 16 , 32 , 64 , 313777 , 627554 , 1255108 , 2510216 , 5020432 , 10040864 , 20081728
14 divisors
τ
Total Divisors
14
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20081727
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.071428571428571
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
14
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081728 can be divided by 14 positive divisors.
The sum of these divisors (counting 20081728) is 1, the average is 0.071428571428571.
Base
System
Value
2
Binary
1001100100110110001000000
3
Ternary
1101210020221201
4
Quaternary
1030212301000
5
Quinary
20120103403
6
Senary
1554230544
8
Octal
114466100
10
Decimal
20081728
12
Duodecimal
6885454
16
Hexadecimal
1326c40
20
Vigesimal
65a468
36
Base36
byf5s
md5
eae77f8f1585804477ab4ff62eaced93
sha1
4adff9fccaf90cd39117bdb62b77d9682aa86deb
sha256
ddff33a517d32e3b0c1dbc36fb814e2c368c0626db488ed16f4512e15dc20a3f
sha512
b9c06cf3d8c0fb4bf5597b7f3b97b2651073ec4627653d7c616d44034f8336a040ea765fea54334e5e6fdac772ec2f80130457ec1c67eb51ea28e5ce3caf7f09
ripemd-160
bd7dc08c6a48e52b60dd4b9f2d2445903eedc17f
Diameter
40163456
Circumference
126177218.31238
Area
1.2669282889729E+15
Volume
3.3922812392879E+22
Surface area
5.0677131558915E+15
Circumference
126177218.31238
Perimeter
80326912
Area
403275799465984
Diagonal
28399852.093488
Surface area
2419654796795904
Volume
8.0984749138584E+21
Space diagonal
34782573.199779
Perimeter
60245184
Area
1.7462354353451E+14
Altitude
17391286.599889
Surface area
1.7462354353451E+14
Volume
9.5441442147641E+20
Height
9466617.3644958