20081813 is an odd 8-digits composite number following 20081812
and preceding 20081814 . In scientific notation, it is written as 2.0081813 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19874688 positive integers (up to 20081813) that are relatively prime to 20081813.
20081813 has 4 divisors, whose sum is 20288940
The reverse of 20081813 is 31818002
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eighty-one thousand eight hundred thirteen
Scientific notation
2.0081813 × 10^7
Engineering notation
2.0081813 × 10^6
Prime Factorization
97 × 207029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081813
Product of the distinct prime numbers
The prime factorization of 20081813 is 97 × 207029.
Since it has a total of 2 prime factors.
10 , 9 , 88 , 2 , 844 , 49 , 3845 , 7909 , 89431 , 96852 , 595378 , 468371 , 8367682 , 2586494 , 53664380 , 56032987 , 672823737 , 43698526 , 5733073557 , 1258859259
n×2
40163626
n×3
60245439
n×4
80327252
n×5
100409065
n÷2
10040906.5
n÷3
6693937.6666667
n÷3
5020453.25
n÷5
4016362.6
n2
403279213366969
n3
8.0985777496226E+21
n4
1.6263412393388E+29
n5
3.265988064259E+36
2 √n
4481.2735912908
3 √n
271.81138253427
4 √n
66.942315401327
5 √n
28.877565908078
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
-20081812
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 20081813 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081813) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110110010010101
3
Ternary
1101210021001212
4
Quaternary
1030212302111
5
Quinary
20120104223
6
Senary
1554231205
8
Octal
114466225
10
Decimal
20081813
12
Duodecimal
6885505
16
Hexadecimal
1326c95
20
Vigesimal
65a4ad
36
Base36
byf85
md5
985678756be6ba73491c9d9dba9a42bb
sha1
114c6f9faa97f730660d71f3cab16ebe8a7bbc15
sha256
6e329fe01bc9780195d714ae01fc85861a20ba9f6b77dde5b3c078ce7c29434b
sha512
6b3b75c7de1865bf3c3957f8d8f4d96903877406d220cd4e2e1bc022576455b97864878ff6b25cdb2a47fbd8ccd70d30e2fd6f30cf3af12a8bfc72e251336ad2
ripemd-160
9063da06d6244e791a8d01749b6f448524555ed2
Diameter
40163626
Circumference
126177752.38313
Area
1.2669390140591E+15
Volume
3.392324315032E+22
Surface area
5.0677560562366E+15
Circumference
126177752.38313
Perimeter
80327252
Area
403279213366969
Diagonal
28399972.30164
Surface area
2419675280201814
Volume
8.0985777496226E+21
Space diagonal
34782720.424097
Perimeter
60245439
Area
1.74625021797E+14
Altitude
17391360.212049
Surface area
1.74625021797E+14
Volume
9.5442654078744E+20
Height
9466657.4338801