20685838 is an even 8-digits composite number following 20685837
and preceding 20685839 . In scientific notation, it is written as 2.0685838 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 9507456 positive integers (up to 20685838) that are relatively prime to 20685838.
20685838 has 16 divisors, whose sum is 33620400
The reverse of 20685838 is 83858602
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-five thousand eight hundred thirty-eight
Scientific notation
2.0685838 × 10^7
Engineering notation
2.0685838 × 10^6
Prime Factorization
2 × 17 × 43 × 14149
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20685838
Product of the distinct prime numbers
The prime factorization of 20685838 is 2 × 17 × 43 × 14149.
Since it has a total of 4 prime factors.
4 , 7 , 93 , 34 , 506 , 151 , 2813 , 8173 , 85736 , 66735 , 388133 , 36699 , 8837096 , 742999 , 5789303 , 4433731 , 525822807 , 80541141 , 9486462068 , 4801330647
n×2
41371676
n×3
62057514
n×4
82743352
n×5
103429190
n÷2
10342919
n÷3
6895279.3333333
n÷3
5171459.5
n÷5
4137167.6
n2
427903893762244
n3
8.851550625935E+21
n4
1.8310174229689E+29
n5
3.7876129786712E+36
2 √n
4548.1686424318
3 √n
274.50970710074
4 √n
67.440111524462
5 √n
29.049229912231
1 , 2 , 17 , 34 , 43 , 86 , 731 , 1462 , 14149 , 28298 , 240533 , 481066 , 608407 , 1216814 , 10342919 , 20685838
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
-20685837
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 20685838 can be divided by 16 positive divisors.
The sum of these divisors (counting 20685838) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010010000001110
3
Ternary
1102220221122011
4
Quaternary
1032322100032
5
Quinary
20243421323
6
Senary
2015211434
8
Octal
116722016
10
Decimal
20685838
12
Duodecimal
6b16b7a
16
Hexadecimal
13ba40e
20
Vigesimal
695ebi
36
Base36
cbdam
md5
17cb54b1691508e7ecf86fe0179d049d
sha1
ef5ad15fcd62d28803fb0425e621e0ef5c1c81a5
sha256
9cf41f5cb061ede0298475a1c837a95686276991357f402a6c9cd9e8853838ab
sha512
da9db7e640b2b0dafa805abbce14d73b0805c13589186a23aa6eb5adc67165b9fe45ab21a5bd24072e0b2393f4a27e2e6b0bc19f64b7db9dd5148dec97a3032a
ripemd-160
268bda35c499348db243c937dcc1ca9d08977764
Diameter
41371676
Circumference
129972953.3883
Area
1.3442997290859E+15
Volume
3.7077288559087E+22
Surface area
5.3771989163437E+15
Circumference
129972953.3883
Perimeter
82743352
Area
427903893762244
Diagonal
29254192.648653
Surface area
2567423362573464
Volume
8.851550625935E+21
Space diagonal
35828922.413139
Perimeter
62057514
Area
1.8528782118819E+14
Altitude
17914461.206569
Surface area
1.8528782118819E+14
Volume
1.0431652452691E+21
Height
9751397.5495509