20505965 is an odd 8-digits composite number following 20505964
and preceding 20505966 . In scientific notation, it is written as 2.0505965 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 15976896 positive integers (up to 20505965) that are relatively prime to 20505965.
20505965 has 8 divisors, whose sum is 20998656
The reverse of 20505965 is 56950502
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million five hundred five thousand nine hundred sixty-five
Scientific notation
2.0505965 × 10^7
Engineering notation
2.0505965 × 10^6
Prime Factorization
1735 × 223 × 53
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20505965
Product of the distinct prime numbers
The prime factorization of 20505965 is 1735 × 223 × 53.
Since it has a total of 3 prime factors.
5 , 6 , 63 , 27 , 102 , 957 , 3822 , 4252 , 61251 , 64661 , 864155 , 398111 , 1806303 , 1972212 , 64120966 , 70263301 , 388493230 , 651865505 , 6604700811 , 5235363092
n×2
41011930
n×3
61517895
n×4
82023860
n×5
102529825
n÷2
10252982.5
n÷3
6835321.6666667
n÷3
5126491.25
n÷5
4101193
n2
420494600581225
n3
8.6226475622076E+21
n4
1.7681570911796E+29
n5
3.6257767426231E+36
2 √n
4528.3512452106
3 √n
273.71172640341
4 √n
67.293025234496
5 √n
28.998533956331
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
-20505964
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 20505965 can be divided by 8 positive divisors.
The sum of these divisors (counting 20505965) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001110010101101101
3
Ternary
1102120210220012
4
Quaternary
1032032111231
5
Quinary
20222142330
6
Senary
2011303005
8
Octal
116162555
10
Decimal
20505965
12
Duodecimal
6a4aa65
16
Hexadecimal
138e56d
20
Vigesimal
6834i5
36
Base36
c7ii5
md5
e3fa7ddebbcc87615c9e3bd5adc4581f
sha1
909744a67ddafa472012fdf39e29a580ce085eb1
sha256
c04375e141bd13883877c7e2b2506ca626c5b167f569fc7a96c59a619bffed48
sha512
ca0dddc252e637fed3577fdf864591d34a693a8b063be24f6e08b74cd202ebd581c58eca03f4e07dba83251c57566cc485038116e35078b00411183e064c9553
ripemd-160
edab1c5591ba167eb45570b35d168efeb0e0a6d2
Diameter
41011930
Circumference
128842777.99754
Area
1.3210227480602E+15
Volume
3.61184616479E+22
Surface area
5.2840909922406E+15
Circumference
128842777.99754
Perimeter
82023860
Area
420494600581225
Diagonal
28999813.812548
Surface area
2522967603487350
Volume
8.6226475622076E+21
Space diagonal
35517373.238229
Perimeter
61517895
Area
1.8207950312877E+14
Altitude
17758686.619115
Surface area
1.8207950312877E+14
Volume
1.0161887605031E+21
Height
9666604.6041827