20688009 is an odd 8-digits composite number following 20688008
and preceding 20688010 . In scientific notation, it is written as 2.0688009 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13792004 positive integers (up to 20688009) that are relatively prime to 20688009.
20688009 has 4 divisors, whose sum is 27584016
The reverse of 20688009 is 90088602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-eight thousand nine
Scientific notation
2.0688009 × 10^7
Engineering notation
2.0688009 × 10^6
Prime Factorization
3 × 6896003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20688009
Product of the distinct prime numbers
The prime factorization of 20688009 is 3 × 6896003.
Since it has a total of 2 prime factors.
2 , 6 , 30 , 64 , 410 , 945 , 5016 , 8132 , 18164 , 99323 , 886544 , 533488 , 3425854 , 2348165 , 26382201 , 83233504 , 938092485 , 152076809 , 1504959135 , 5715160402
n×2
41376018
n×3
62064027
n×4
82752036
n×5
103440045
n÷2
10344004.5
n÷3
6896003
n÷3
5172002.25
n÷5
4137601.8
n2
427993716384081
n3
8.8543378564973E+21
n4
1.8317862126426E+29
n5
3.7896009653225E+36
2 √n
4548.4073036614
3 √n
274.51931012361
4 √n
67.441880932113
5 √n
29.049839635954
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
-20688008
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 20688009 can be divided by 4 positive divisors.
The sum of these divisors (counting 20688009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010110010001001
3
Ternary
1102221001121120
4
Quaternary
1032322302021
5
Quinary
20244004014
6
Senary
2015225453
8
Octal
116726211
10
Decimal
20688009
12
Duodecimal
6b18289
16
Hexadecimal
13bac89
20
Vigesimal
696009
36
Base36
cbeyx
md5
75aaa5725bbec884478b303ec75cb1b0
sha1
2eeb7c7f7ba774b366a725af025267cd6a33bdda
sha256
e83bc71c1c3efd916667f7c53ff698b8880a2536c1f6cb3785abbd5d880a2756
sha512
9dfbd4540566332489fa6f9e2be5f5af0e1c2c6ef4f08a38495bfb44eab8a73ebcd982e6c98637c3d16165c8c6df203dfe090b125a45d1439f38329a27cc62d9
ripemd-160
cc3c2dac99a7e0f31f673403b727c1d5dcbef186
Diameter
41376018
Circumference
129986594.1836
Area
1.3445819151748E+15
Volume
3.7088963683165E+22
Surface area
5.3783276606993E+15
Circumference
129986594.1836
Perimeter
82752036
Area
427993716384081
Diagonal
29257262.906297
Surface area
2567962298304486
Volume
8.8543378564973E+21
Space diagonal
35832682.695442
Perimeter
62064027
Area
1.8532671552436E+14
Altitude
17916341.347721
Surface area
1.8532671552436E+14
Volume
1.043493723541E+21
Height
9752420.9687656