20688654 is an even 8-digits composite number following 20688653
and preceding 20688655 . In scientific notation, it is written as 2.0688654 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 5911032 positive integers (up to 20688654) that are relatively prime to 20688654.
20688654 has 16 divisors, whose sum is 47288448
The reverse of 20688654 is 45688602
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred eighty-eight thousand six hundred fifty-four
Scientific notation
2.0688654 × 10^7
Engineering notation
2.0688654 × 10^6
Prime Factorization
2 × 3 × 7 × 492587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20688654
Product of the distinct prime numbers
The prime factorization of 20688654 is 2 × 3 × 7 × 492587.
Since it has a total of 4 prime factors.
5 , 6 , 78 , 98 , 789 , 641 , 3501 , 1730 , 92172 , 20378 , 381237 , 923266 , 291755 , 9477204 , 93859962 , 33207953 , 682433370 , 484282054 , 9717485632 , 2176621409
n×2
41377308
n×3
62065962
n×4
82754616
n×5
103443270
n÷2
10344327
n÷3
6896218
n÷3
5172163.5
n÷5
4137730.8
n2
428020404331716
n3
8.855166050159E+21
n4
1.8320146652429E+29
n5
3.7901917532135E+36
2 √n
4548.478207049
3 √n
274.52216303412
4 √n
67.442406592952
5 √n
29.050020773857
1 , 2 , 3 , 6 , 7 , 14 , 21 , 42 , 492587 , 985174 , 1477761 , 2955522 , 3448109 , 6896218 , 10344327 , 20688654
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20688653
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20688654 can be divided by 16 positive divisors.
The sum of these divisors (counting 20688654) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010111100001110
3
Ternary
1102221002111110
4
Quaternary
1032322330032
5
Quinary
20244014104
6
Senary
2015232450
8
Octal
116727416
10
Decimal
20688654
12
Duodecimal
6b18726
16
Hexadecimal
13baf0e
20
Vigesimal
6961ce
36
Base36
cbfgu
md5
3763b7286007ecc62f227151c8079445
sha1
32e0f52fc4c97ced102ef9b9197bee029e72ba0b
sha256
4acecd2b89b8d2b2551721d1c04b9492ef9306ec1722110c8d1910aeba851c4c
sha512
b7f9b89aba7e81e30c335aefb1e7b2655d58d17960763e9f123d24122e616f1debcc5a829bae1cd523fc88f3e5062fda146cdaa0bc429a98b27f0e37fe81265e
ripemd-160
63e1de045c92c69a519669459cc61aeca2b866e1
Diameter
41377308
Circumference
129990646.83812
Area
1.3446657578351E+15
Volume
3.7092432812663E+22
Surface area
5.3786630313402E+15
Circumference
129990646.83812
Perimeter
82754616
Area
428020404331716
Diagonal
29258175.074044
Surface area
2568122425990296
Volume
8.855166050159E+21
Space diagonal
35833799.868213
Perimeter
62065962
Area
1.8533827174468E+14
Altitude
17916899.934107
Surface area
1.8533827174468E+14
Volume
1.0435913271001E+21
Height
9752725.0246815