20505712 is an even 8-digits composite number following 20505711
and preceding 20505713 . In scientific notation, it is written as 2.0505712 × 10^7.
The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors.
There are 9713088 positive integers (up to 20505712) that are relatively prime to 20505712.
20505712 has 20 divisors, whose sum is 41821480
The reverse of 20505712 is 21750502
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million five hundred five thousand seven hundred twelve
Scientific notation
2.0505712 × 10^7
Engineering notation
2.0505712 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 19 × 67453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2563214
Product of the distinct prime numbers
The prime factorization of 20505712 is 2 × 2 × 2 × 2 × 19 × 67453.
Since it has a total of 6 prime factors.
7 , 1 , 4 , 72 , 597 , 563 , 481 , 6876 , 8130 , 33427 , 9302 , 162547 , 6806345 , 9401118 , 25520312 , 65744764 , 157802583 , 855184826 , 3288545426 , 2353020470
n×2
41011424
n×3
61517136
n×4
82022848
n×5
102528560
n÷2
10252856
n÷3
6835237.3333333
n÷3
5126428
n÷5
4101142.4
n2
420484224626944
n3
8.6223284107434E+21
n4
1.7680698316012E+29
n5
3.6255530762703E+36
2 √n
4528.3233100122
3 √n
273.71060072523
4 √n
67.29281767033
5 √n
28.998462399929
1 , 2 , 4 , 8 , 16 , 19 , 38 , 76 , 152 , 304 , 67453 , 134906 , 269812 , 539624 , 1079248 , 1281607 , 2563214 , 5126428 , 10252856 , 20505712
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20505711
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20505712 can be divided by 20 positive divisors.
The sum of these divisors (counting 20505712) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001110001110010001110000
3
Ternary
1102120210112211
4
Quaternary
1032032101300
5
Quinary
20222140322
6
Senary
2011301504
8
Octal
116162160
10
Decimal
20505712
12
Duodecimal
6a4a894
16
Hexadecimal
138e470
20
Vigesimal
68345c
36
Base36
c7ib4
md5
708b5b172fc932e26fd8eff4d0009a3f
sha1
129eeddbaf094a19873905031743380a7e8ebec4
sha256
5d55727f1390dadeaddeb2bbc976be8437f2be2c1293dbf17f4a4718b5b9993f
sha512
2abafc5e58da5b1f84279c27638958c8aa7c51b1528920aea316da59f0d3e414d48c2b0eed08bfd078083acace85b36b590c36632c21d55851c4519b4aa767b9
ripemd-160
7437a7fb3efb0e7a604d6a95fb3df9bf3bf996b5
Diameter
41011424
Circumference
128841188.35166
Area
1.3209901510384E+15
Volume
3.6117124789373E+22
Surface area
5.2839606041536E+15
Circumference
128841188.35166
Perimeter
82022848
Area
420484224626944
Diagonal
28999456.016517
Surface area
2522905347761664
Volume
8.6223284107434E+21
Space diagonal
35516935.029375
Perimeter
61517136
Area
1.8207501020877E+14
Altitude
17758467.514687
Surface area
1.8207501020877E+14
Volume
1.0161511481424E+21
Height
9666485.3388389