20028865 is an odd 8-digits composite number following 20028864
and preceding 20028866 . In scientific notation, it is written as 2.0028865 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 15867120 positive integers (up to 20028865) that are relatively prime to 20028865.
20028865 has 8 divisors, whose sum is 24268608
The reverse of 20028865 is 56882002
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million twenty-eight thousand eight hundred sixty-five
Scientific notation
2.0028865 × 10^7
Engineering notation
2.0028865 × 10^6
Prime Factorization
5 × 103 × 38891
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20028865
Product of the distinct prime numbers
The prime factorization of 20028865 is 5 × 103 × 38891.
Since it has a total of 3 prime factors.
3 , 3 , 31 , 22 , 988 , 821 , 9586 , 1181 , 39873 , 41891 , 163220 , 126814 , 1651881 , 1438225 , 25989197 , 99925635 , 310252189 , 339900794 , 6050343711 , 8138285805
n×2
40057730
n×3
60086595
n×4
80115460
n×5
100144325
n÷2
10014432.5
n÷3
6676288.3333333
n÷3
5007216.25
n÷5
4005773
n2
401155433188225
n3
8.0346880153435E+21
n4
1.6092568157643E+29
n5
3.2231587513274E+36
2 √n
4475.3619965317
3 √n
271.57228499452
4 √n
66.898146435695
5 √n
28.862322020698
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20028864
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20028865 can be divided by 8 positive divisors.
The sum of these divisors (counting 20028865) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011001110111000001
3
Ternary
1101200120102211
4
Quaternary
1030121313001
5
Quinary
20111410430
6
Senary
1553142121
8
Octal
114316701
10
Decimal
20028865
12
Duodecimal
685a941
16
Hexadecimal
1319dc1
20
Vigesimal
653c35
36
Base36
bxadd
md5
b77835f2d957d1b8ede6a14969becba3
sha1
27cc2d655a0ff7a7d710cd327223533717652564
sha256
71c13aa7eed57adcd685e8897edd2a0d90e6ba396c8ebf5af376720b96494032
sha512
4bfe12adc5dd54b08e65b60e353cfb54755e865e099c5fa0509b6d607210c9e186950d1aa61364aac9aacafe84f0af16121bb815298ed047a6d1b8fa90b5e7eb
ripemd-160
a9205138f52923a066ac9c4fe3ded79fba41fdfb
Diameter
40057730
Circumference
125845070.28748
Area
1.2602669618518E+15
Volume
3.3655622457185E+22
Surface area
5.041067847407E+15
Circumference
125845070.28748
Perimeter
80115460
Area
401155433188225
Diagonal
28325092.52194
Surface area
2406932599129350
Volume
8.0346880153435E+21
Space diagonal
34691011.797938
Perimeter
60086595
Area
1.7370539800358E+14
Altitude
17345505.898969
Surface area
1.7370539800358E+14
Volume
9.4689706339461E+20
Height
9441697.5073133