20804813 is an odd 8-digits composite number following 20804812
and preceding 20804814 . In scientific notation, it is written as 2.0804813 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20133660 positive integers (up to 20804813) that are relatively prime to 20804813.
20804813 has 4 divisors, whose sum is 21475968
The reverse of 20804813 is 31840802
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eight hundred four thousand eight hundred thirteen
Scientific notation
2.0804813 × 10^7
Engineering notation
2.0804813 × 10^6
Prime Factorization
31 × 671123
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804813
Product of the distinct prime numbers
The prime factorization of 20804813 is 31 × 671123.
Since it has a total of 2 prime factors.
5 , 1 , 23 , 34 , 205 , 569 , 2519 , 6196 , 81300 , 59853 , 751905 , 675520 , 3030965 , 1108393 , 43837370 , 76261907 , 94182688 , 650158942 , 7828792678 , 9987850191
n×2
41609626
n×3
62414439
n×4
83219252
n×5
104024065
n÷2
10402406.5
n÷3
6934937.6666667
n÷3
5201203.25
n÷5
4160962.6
n2
432840243964969
n3
9.0051603345656E+21
n4
1.8735067679565E+29
n5
3.897795796157E+36
2 √n
4561.2293299066
3 √n
275.03498397909
4 √n
67.536873853522
5 √n
29.082568742915
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
-20804812
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 20804813 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804813) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010011001101
3
Ternary
1110010222211122
4
Quaternary
1033113103031
5
Quinary
20311223223
6
Senary
2021530325
8
Octal
117272315
10
Decimal
20804813
12
Duodecimal
6b739a5
16
Hexadecimal
13d74cd
20
Vigesimal
6a0c0d
36
Base36
cdx3h
md5
5c2b2871ff9d4cddf9c2d01d7e93ab64
sha1
2fa08992f0809bd55c8eee2ed170041273a7f5ec
sha256
5f535082e16778b7062b199ec421dd4710b19d4bc1fce17dc1060e5ad56c7987
sha512
7332e01c4b46c67b99b27ca0d8864e588f1fe78675b1bef535dfe715a77202a7bb1274c371f98ba7394345c32e7a22bc7ee99af06a87cfc50d7bbbb5073f8c4d
ripemd-160
01c20cef6e1e3c1d05f32cb4544ff29b2551b0fa
Diameter
41609626
Circumference
130720495.36022
Area
1.3598077306184E+15
Volume
3.7720727401959E+22
Surface area
5.4392309224734E+15
Circumference
130720495.36022
Perimeter
83219252
Area
432840243964969
Diagonal
29422448.707236
Surface area
2597041463789814
Volume
9.0051603345656E+21
Space diagonal
36034993.157969
Perimeter
62414439
Area
1.8742532352696E+14
Altitude
18017496.578985
Surface area
1.8742532352696E+14
Volume
1.0612683230406E+21
Height
9807482.902412