20688638 is an even 8-digits composite number following 20688637
and preceding 20688639 . In scientific notation, it is written as 2.0688638 × 10^7.
The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors.
There are 9504000 positive integers (up to 20688638) that are relatively prime to 20688638.
20688638 has 32 divisors, whose sum is 33694272
The reverse of 20688638 is 83688602
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million six hundred eighty-eight thousand six hundred thirty-eight
Scientific notation
2.0688638 × 10^7
Engineering notation
2.0688638 × 10^6
Prime Factorization
2 × 23 × 61 × 73 × 101
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20688638
Product of the distinct prime numbers
The prime factorization of 20688638 is 2 × 23 × 61 × 73 × 101.
Since it has a total of 5 prime factors.
8 , 2 , 27 , 67 , 491 , 229 , 6321 , 6085 , 92109 , 8906 , 207589 , 544387 , 3711414 , 8002845 , 84132612 , 61166200 , 97684437 , 62419675 , 8037729060 , 6107361643
n×2
41377276
n×3
62065914
n×4
82754552
n×5
103443190
n÷2
10344319
n÷3
6896212.6666667
n÷3
5172159.5
n÷5
4137727.6
n2
428019742295044
n3
8.8551455051955E+21
n4
1.8320089979432E+29
n5
3.7901770971189E+36
2 √n
4548.4764482187
3 √n
274.52209226497
4 √n
67.442393553452
5 √n
29.050016280568
1 , 2 , 23 , 46 , 61 , 73 , 101 , 122 , 146 , 202 , 1403 , 1679 , 2323 , 2806 , 3358 , 4453 , 4646 , 6161 , 7373 , 8906 , 12322 , 14746 , 102419 , 141703 , 169579 , 204838 , 283406 , 339158 , 449753 , 899506 , 10344319 , 20688638
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20688637
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20688638 can be divided by 32 positive divisors.
The sum of these divisors (counting 20688638) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110111010111011111110
3
Ternary
1102221002110212
4
Quaternary
1032322323332
5
Quinary
20244014023
6
Senary
2015232422
8
Octal
116727376
10
Decimal
20688638
12
Duodecimal
6b18712
16
Hexadecimal
13baefe
20
Vigesimal
6961bi
36
Base36
cbfge
md5
b655bbc02d71ffd2c80251fde9d40908
sha1
4d6a561e115b5949d1e5668836148e35a7af22b7
sha256
ea38e4fbd0c7daab148c130022c9f7943c2f2923f1b33d523aee899d8a4db4a0
sha512
0897a845be9afe4cd1058fa504489e4e0533262ee4cdd5414f82fbc5e41b27cfb6a0f8c5a2c13e162d4bcf97b1e4c462baf03bb9ef2317c3556add2baee79a85
ripemd-160
170eb3c3c6302187e46ad80b1b4ae68e280454f0
Diameter
41377276
Circumference
129990546.30716
Area
1.3446636779855E+15
Volume
3.7092346754121E+22
Surface area
5.378654711942E+15
Circumference
129990546.30716
Perimeter
82754552
Area
428019742295044
Diagonal
29258152.446627
Surface area
2568118453770264
Volume
8.8551455051955E+21
Space diagonal
35833772.1554
Perimeter
62065914
Area
1.8533798507439E+14
Altitude
17916886.0777
Surface area
1.8533798507439E+14
Volume
1.0435889058529E+21
Height
9752717.4822091