20128715 is an odd 8-digits composite number following 20128714
and preceding 20128716 . In scientific notation, it is written as 2.0128715 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 16102968 positive integers (up to 20128715) that are relatively prime to 20128715.
20128715 has 4 divisors, whose sum is 24154464
The reverse of 20128715 is 51782102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-eight thousand seven hundred fifteen
Scientific notation
2.0128715 × 10^7
Engineering notation
2.0128715 × 10^6
Prime Factorization
5 × 4025743
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20128715
Product of the distinct prime numbers
The prime factorization of 20128715 is 5 × 4025743.
Since it has a total of 2 prime factors.
4 , 1 , 38 , 85 , 511 , 892 , 3131 , 9587 , 4162 , 99194 , 731183 , 256600 , 1219875 , 421051 , 83535918 , 21752733 , 866897738 , 416722019 , 2940607771 , 6615658100
n×2
40257430
n×3
60386145
n×4
80514860
n×5
100643575
n÷2
10064357.5
n÷3
6709571.6666667
n÷3
5032178.75
n÷5
4025743
n2
405165167551225
n3
8.1554541855659E+21
n4
1.6415881299681E+29
n5
3.3043059615511E+36
2 √n
4486.5036498369
3 √n
272.02282734456
4 √n
66.981367930469
5 √n
28.891042301334
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
-20128714
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 20128715 can be divided by 4 positive divisors.
The sum of these divisors (counting 20128715) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010001111001011
3
Ternary
1101212122101222
4
Quaternary
1030302033023
5
Quinary
20123104330
6
Senary
1555232255
8
Octal
114621713
10
Decimal
20128715
12
Duodecimal
68a868b
16
Hexadecimal
13323cb
20
Vigesimal
65g1ff
36
Base36
bzfez
md5
472f3efb862088a3e774a63e2c0b26eb
sha1
9cf32d35f8d868a7ed44aa116af583c407d1b2d5
sha256
5895a1db8869567a3c7c5360332183fc222643cf69ca06756a1523c3268e3563
sha512
04d1844e77aa521631b5e4d4b39df3f527c4ed25cb4eee4796b2b36cb7728b309dbd811edb575331563ab859077e74dbf67bccf5fcb6aa179e3e7495472d4fdf
ripemd-160
793bc8d335e62ada8bcb6377c574cb01b3eafd23
Diameter
40257430
Circumference
126472446.34041
Area
1.2728639138694E+15
Volume
3.4161486608082E+22
Surface area
5.0914556554776E+15
Circumference
126472446.34041
Perimeter
80514860
Area
405165167551225
Diagonal
28466301.746143
Surface area
2430991005307350
Volume
8.1554541855659E+21
Space diagonal
34863957.071074
Perimeter
60386145
Area
1.7544166391397E+14
Altitude
17431978.535537
Surface area
1.7544166391397E+14
Volume
9.6112949304497E+20
Height
9488767.2487143