20686021 is an odd 8-digits composite number following 20686020
and preceding 20686022 . In scientific notation, it is written as 2.0686021 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 19968960 positive integers (up to 20686021) that are relatively prime to 20686021.
20686021 has 8 divisors, whose sum is 21406464
The reverse of 20686021 is 12068602
Previous prime number is 683
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred eighty-six thousand twenty-one
Scientific notation
2.0686021 × 10^7
Engineering notation
2.0686021 × 10^6
Prime Factorization
31 × 683 × 977
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20686021
Product of the distinct prime numbers
The prime factorization of 20686021 is 31 × 683 × 977.
Since it has a total of 3 prime factors.
6 , 4 , 59 , 92 , 737 , 85 , 2629 , 744 , 65633 , 9192 , 767281 , 742482 , 960245 , 6718181 , 60111630 , 60574463 , 395786326 , 326109464 , 7353416742 , 7281602566
n×2
41372042
n×3
62058063
n×4
82744084
n×5
103430105
n÷2
10343010.5
n÷3
6895340.3333333
n÷3
5171505.25
n÷5
4137204.2
n2
427911464812441
n3
8.8517855472509E+21
n4
1.8310822171793E+29
n5
3.7877805197297E+36
2 √n
4548.1887603748
3 √n
274.51051659382
4 √n
67.440260678432
5 √n
29.049281309619
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
-20686020
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 20686021 can be divided by 8 positive divisors.
The sum of these divisors (counting 20686021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010010011000101
3
Ternary
1102220221212221
4
Quaternary
1032322103011
5
Quinary
20243423041
6
Senary
2015212341
8
Octal
116722305
10
Decimal
20686021
12
Duodecimal
6b170b1
16
Hexadecimal
13ba4c5
20
Vigesimal
695f11
36
Base36
cbdfp
md5
f835d5064fbdf950887b6980417e36b1
sha1
b96be96cdd8fb1c83006fa5971f81449bde2f1ba
sha256
53ac16679669cb55d27de54119b6ef110bcbcfa88e8541892ab29ebe3c13ebf7
sha512
907746518aef0cd6e0e5cc5a3a0811660b4ea164e8392b8723b6a325e1976abb680808e9635e91959426ad5374e858508e8de2a87c1758527f8fa5ae65c25ce0
ripemd-160
a95e2cc244f73994c00ef5008b1ab2ac5e861a89
Diameter
41372042
Circumference
129974103.21121
Area
1.3443235142416E+15
Volume
3.7078272595194E+22
Surface area
5.3772940569664E+15
Circumference
129974103.21121
Perimeter
82744084
Area
427911464812441
Diagonal
29254451.449735
Surface area
2567468788874646
Volume
8.8517855472509E+21
Space diagonal
35829239.378437
Perimeter
62058063
Area
1.8529109954909E+14
Altitude
17914619.689218
Surface area
1.8529109954909E+14
Volume
1.0431929310117E+21
Height
9751483.8165782