20686321 is an odd 8-digits composite number following 20686320
and preceding 20686322 . In scientific notation, it is written as 2.0686321 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20643700 positive integers (up to 20686321) that are relatively prime to 20686321.
20686321 has 4 divisors, whose sum is 20728944
The reverse of 20686321 is 12368602
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-six thousand three hundred twenty-one
Scientific notation
2.0686321 × 10^7
Engineering notation
2.0686321 × 10^6
Prime Factorization
491 × 42131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20686321
Product of the distinct prime numbers
The prime factorization of 20686321 is 491 × 42131.
Since it has a total of 2 prime factors.
3 , 5 , 27 , 52 , 277 , 273 , 5872 , 7134 , 83332 , 47555 , 693085 , 103267 , 6657667 , 9735949 , 87908469 , 63627806 , 48202092 , 683923179 , 3110369765 , 4865372503
n×2
41372642
n×3
62058963
n×4
82745284
n×5
103431605
n÷2
10343160.5
n÷3
6895440.3333333
n÷3
5171580.25
n÷5
4137264.2
n2
427923876515041
n3
8.8521706731545E+21
n4
1.8311884409166E+29
n5
3.788055190029E+36
2 √n
4548.2217404168
3 √n
274.51184362133
4 √n
67.440505190996
5 √n
29.049365566846
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20686320
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20686321 can be divided by 4 positive divisors.
The sum of these divisors (counting 20686321) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010010111110001
3
Ternary
1102220222022001
4
Quaternary
1032322113301
5
Quinary
20243430241
6
Senary
2015214001
8
Octal
116722761
10
Decimal
20686321
12
Duodecimal
6b17301
16
Hexadecimal
13ba5f1
20
Vigesimal
695fg1
36
Base36
cbdo1
md5
05344f508a11783b9f7b1ac2db852d75
sha1
80f8ea1d1555ecd4d1bb7469901ec7348b96aa4a
sha256
7e7f0a69aed359918feafbaecc9182d976b583a99a4b459de38e31d59c5b1d60
sha512
02203d9005abecce0fe39bdf2c1975b103f1c7c3f7ec3147a5994ed4fbe0ebfdc0ac69e0dddec34c1d70c65220d8fc7fc8c17efb3f97cd58033ff9917e46e12c
ripemd-160
21d353e4807e5dbdb314f7cf95f015ee002163d2
Diameter
41372642
Circumference
129975988.1668
Area
1.3443625067553E+15
Volume
3.7079885806807E+22
Surface area
5.3774500270213E+15
Circumference
129975988.1668
Perimeter
82745284
Area
427923876515041
Diagonal
29254875.713803
Surface area
2567543259090246
Volume
8.8521706731545E+21
Space diagonal
35829758.993679
Perimeter
62058963
Area
1.8529647397397E+14
Altitude
17914879.49684
Surface area
1.8529647397397E+14
Volume
1.0432383185347E+21
Height
9751625.2379345