20688321 is an odd 8-digits composite number following 20688320
and preceding 20688322 . In scientific notation, it is written as 2.0688321 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13066272 positive integers (up to 20688321) that are relatively prime to 20688321.
20688321 has 8 divisors, whose sum is 29036320
The reverse of 20688321 is 12388602
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million six hundred eighty-eight thousand three hundred twenty-one
Scientific notation
2.0688321 × 10^7
Engineering notation
2.0688321 × 10^6
Prime Factorization
3 × 19 × 362953
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20688321
Product of the distinct prime numbers
The prime factorization of 20688321 is 3 × 19 × 362953.
Since it has a total of 3 prime factors.
4 , 9 , 35 , 96 , 742 , 19 , 2185 , 9260 , 95782 , 95217 , 936546 , 64046 , 8379937 , 4766348 , 97091330 , 86566902 , 261854163 , 874901145 , 6357246099 , 9051830490
n×2
41376642
n×3
62064963
n×4
82753284
n×5
103441605
n÷2
10344160.5
n÷3
6896107
n÷3
5172080.25
n÷5
4137664.2
n2
428006625799041
n3
8.8547384646574E+21
n4
1.8318967172788E+29
n5
3.789886732591E+36
2 √n
4548.441601252
3 √n
274.52069014354
4 √n
67.442135206798
5 √n
29.049927256713
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
-20688320
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 20688321 can be divided by 8 positive divisors.
The sum of these divisors (counting 20688321) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010110111000001
3
Ternary
1102221002001010
4
Quaternary
1032322313001
5
Quinary
20244011241
6
Senary
2015231133
8
Octal
116726701
10
Decimal
20688321
12
Duodecimal
6b184a9
16
Hexadecimal
13badc1
20
Vigesimal
6960g1
36
Base36
cbf7l
md5
c350540a61a4fda20e2cb992eb1accb7
sha1
de197c168f4190ca0cfcd6f1ac58cfae5f904689
sha256
3b55ce3c1d72d46891d599585c730e800ddbf197a3dc8176619fc9eed2e34aa3
sha512
b2059c0c539b3428bc081237abfca5feb4067e7fa939f035579ae5c0f8efb4e96bd165cc097ff60d2afb22bfca0927a2e3d72a80198b7b2e3324769c650539ba
ripemd-160
b99204f1722a746d6a6a6665d7c8f4eb69c247be
Diameter
41376642
Circumference
129988554.53741
Area
1.344622471298E+15
Volume
3.7090641746702E+22
Surface area
5.3784898851921E+15
Circumference
129988554.53741
Perimeter
82753284
Area
428006625799041
Diagonal
29257704.140928
Surface area
2568039754794246
Volume
8.8547384646574E+21
Space diagonal
35833223.095294
Perimeter
62064963
Area
1.8533230546501E+14
Altitude
17916611.547647
Surface area
1.8533230546501E+14
Volume
1.0435409356654E+21
Height
9752568.046976