20320821 is an odd 8-digits composite number following 20320820
and preceding 20320822 . In scientific notation, it is written as 2.0320821 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13405824 positive integers (up to 20320821) that are relatively prime to 20320821.
20320821 has 8 divisors, whose sum is 21293440
The reverse of 20320821 is 12802302
Previous prime number is 7759
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million three hundred twenty thousand eight hundred twenty-one
Scientific notation
2.0320821 × 10^7
Engineering notation
2.0320821 × 10^6
Prime Factorization
27 × 7759 × 97
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20320821
Product of the distinct prime numbers
The prime factorization of 20320821 is 27 × 7759 × 97.
Since it has a total of 3 prime factors.
8 , 1 , 19 , 52 , 468 , 402 , 7516 , 9208 , 92352 , 78693 , 99467 , 33732 , 7949832 , 6350692 , 37610772 , 28645931 , 765349546 , 245392964 , 8780269423 , 4931158698
n×2
40641642
n×3
60962463
n×4
81283284
n×5
101604105
n÷2
10160410.5
n÷3
6773607
n÷3
5080205.25
n÷5
4064164.2
n2
412935766114041
n3
8.3911937877013E+21
n4
1.7051594693619E+29
n5
3.4650240353358E+36
2 √n
4507.8621318758
3 √n
272.88547303354
4 √n
67.140614622416
5 √n
28.945979490751
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
-20320820
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 20320821 can be divided by 8 positive divisors.
The sum of these divisors (counting 20320821) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101100001001000110101
3
Ternary
1102020101221000
4
Quaternary
1031201020311
5
Quinary
20200231241
6
Senary
2003313513
8
Octal
115411065
10
Decimal
20320821
12
Duodecimal
697b899
16
Hexadecimal
1361235
20
Vigesimal
670211
36
Base36
c3jn9
md5
63758c69758f85053412fe784b2ba144
sha1
9c171528b8abda420190dc2bb20aec73cdbc1905
sha256
1a24c4a8ed6c1c0baafedbdc671a4596b54fb1f8ac7bc2c7a27a3f7fe567ddf5
sha512
5292666b8eb212e5779f0c90d87934bf8c2dcf49df3e5312fae9b1d7132a06088e518945467692263c4b2eea8da9fa898c05dc186726ffdfa4dff8e26ee99b26
ripemd-160
30c4612e7465077450f475d85e16ee7b39a4d634
Diameter
40641642
Circumference
127679483.93703
Area
1.2972759692283E+15
Volume
3.5148950344388E+22
Surface area
5.1891038769134E+15
Circumference
127679483.93703
Perimeter
81283284
Area
412935766114041
Diagonal
28737980.656756
Surface area
2477614596684246
Volume
8.3911937877013E+21
Space diagonal
35196694.423513
Perimeter
60962463
Area
1.7880643179297E+14
Altitude
17598347.211756
Surface area
1.7880643179297E+14
Volume
9.88911671589E+20
Height
9579326.8855853