20731621 is an odd 8-digits composite number following 20731620
and preceding 20731622 . In scientific notation, it is written as 2.0731621 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20627244 positive integers (up to 20731621) that are relatively prime to 20731621.
20731621 has 4 divisors, whose sum is 20836000
The reverse of 20731621 is 12613702
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million seven hundred thirty-one thousand six hundred twenty-one
Scientific notation
2.0731621 × 10^7
Engineering notation
2.0731621 × 10^6
Prime Factorization
199 × 104179
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20731621
Product of the distinct prime numbers
The prime factorization of 20731621 is 199 × 104179.
Since it has a total of 2 prime factors.
1 , 5 , 14 , 97 , 930 , 194 , 9000 , 2298 , 35099 , 56114 , 949888 , 492509 , 4414868 , 5639799 , 41232673 , 45371812 , 460665186 , 732007475 , 7007569759 , 723725739
n×2
41463242
n×3
62194863
n×4
82926484
n×5
103658105
n÷2
10365810.5
n÷3
6910540.3333333
n÷3
5182905.25
n÷5
4146324.2
n2
429800109287641
n3
8.91045297151E+21
n4
1.8472813394367E+29
n5
3.8297136609574E+36
2 √n
4553.1989853289
3 √n
274.71207771678
4 √n
67.477396106614
5 √n
29.062077204548
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
-20731620
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 20731621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20731621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000101011011100101
3
Ternary
1110000021102211
4
Quaternary
1033011123211
5
Quinary
20301402441
6
Senary
2020203421
8
Octal
117053345
10
Decimal
20731621
12
Duodecimal
6b39571
16
Hexadecimal
13c56e5
20
Vigesimal
69b911
36
Base36
cccmd
md5
4bd892a99c4f677bece70d7c6d6493f8
sha1
c53674aab97bd2ab15185a5e99099f65210bcbe5
sha256
a41089df58211b159b3457cc752de084dd3b50d86206bea0bb3540d60b105172
sha512
6438a2759ce2a6885dfb9735b9690893830cb3a3193bb27bd50b340e72f87480a284e222c421e87703174ede65f4507f346fa231bb3352f695964158261be5b1
ripemd-160
0ef243d8de50a99fc573ab8a82ee0a7897102a72
Diameter
41463242
Circumference
130260616.46122
Area
1.3502568658501E+15
Volume
3.7324018127271E+22
Surface area
5.4010274634006E+15
Circumference
130260616.46122
Perimeter
82926484
Area
429800109287641
Diagonal
29318939.588179
Surface area
2578800655725846
Volume
8.91045297151E+21
Space diagonal
35908220.895262
Perimeter
62194863
Area
1.8610890659621E+14
Altitude
17954110.447631
Surface area
1.8610890659621E+14
Volume
1.0501069532664E+21
Height
9772979.8627263