20028487 is an odd 8-digits composite number following 20028486
and preceding 20028488 . In scientific notation, it is written as 2.0028487 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20018440 positive integers (up to 20028487) that are relatively prime to 20028487.
20028487 has 4 divisors, whose sum is 20038536
The reverse of 20028487 is 78482002
Previous prime number is 7307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million twenty-eight thousand four hundred eighty-seven
Scientific notation
2.0028487 × 10^7
Engineering notation
2.0028487 × 10^6
Prime Factorization
7307 × 2741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20028487
Product of the distinct prime numbers
The prime factorization of 20028487 is 7307 × 2741.
Since it has a total of 2 prime factors.
10 , 7 , 99 , 25 , 212 , 502 , 6507 , 1615 , 88847 , 19684 , 535940 , 905491 , 6837888 , 9015569 , 55510009 , 69952461 , 297059590 , 466814020 , 5408169988 , 4429375930
n×2
40056974
n×3
60085461
n×4
80113948
n×5
100142435
n÷2
10014243.5
n÷3
6676162.3333333
n÷3
5007121.75
n÷5
4005697.4
n2
401140291509169
n3
8.0342331136676E+21
n4
1.6091353347206E+29
n5
3.2228546132692E+36
2 √n
4475.3197651118
3 √n
271.57057654408
4 √n
66.897830795264
5 √n
28.86221307753
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
-20028486
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 20028487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20028487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011001110001000111
3
Ternary
1101200112220211
4
Quaternary
1030121301013
5
Quinary
20111402422
6
Senary
1553140251
8
Octal
114316107
10
Decimal
20028487
12
Duodecimal
685a687
16
Hexadecimal
1319c47
20
Vigesimal
653b47
36
Base36
bxa2v
md5
1f2ad02adb53c1be46285a187f906edf
sha1
8b007387a43538495cbd8be942e0f3328166efcc
sha256
af1c0ae11da03909e3d04a9309fa876bcbc6ab8aaec38d2a69214cd0849c4b5a
sha512
08f99cbea6476448c4ebdb5e058dcf24b3365aa68aa20ff70bb624acd4dbf19cacceaba9cf24e9c19029e276ad45490160df4853624df5a313742d77d9b16471
ripemd-160
93d540f79aa843aa7ac515067d185368f50b8de6
Diameter
40056974
Circumference
125842695.24344
Area
1.2602193928641E+15
Volume
3.3653716969501E+22
Surface area
5.0408775714563E+15
Circumference
125842695.24344
Perimeter
80113948
Area
401140291509169
Diagonal
28324557.949213
Surface area
2406841749055014
Volume
8.0342331136676E+21
Space diagonal
34690357.082733
Perimeter
60085461
Area
1.7369884146422E+14
Altitude
17345178.541366
Surface area
1.7369884146422E+14
Volume
9.4684345271798E+20
Height
9441519.3164044