20803809 is an odd 8-digits composite number following 20803808
and preceding 20803810 . In scientific notation, it is written as 2.0803809 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12764736 positive integers (up to 20803809) that are relatively prime to 20803809.
20803809 has 16 divisors, whose sum is 29960000
The reverse of 20803809 is 90830802
Previous prime number is 1069
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million eight hundred three thousand eight hundred nine
Scientific notation
2.0803809 × 10^7
Engineering notation
2.0803809 × 10^6
Prime Factorization
3 × 13 × 1069 × 499
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20803809
Product of the distinct prime numbers
The prime factorization of 20803809 is 3 × 13 × 1069 × 499.
Since it has a total of 4 prime factors.
5 , 7 , 44 , 45 , 911 , 750 , 7839 , 1767 , 17455 , 39184 , 121481 , 216384 , 1016744 , 2145017 , 73322283 , 17635941 , 689358975 , 441093353 , 2845444884 , 6862163417
n×2
41607618
n×3
62411427
n×4
83215236
n×5
104019045
n÷2
10401904.5
n÷3
6934603
n÷3
5200952.25
n÷5
4160761.8
n2
432798468908481
n3
9.0038566826645E+21
n4
1.8731451468953E+29
n5
3.8968553865286E+36
2 √n
4561.11927053
3 √n
275.03055968929
4 √n
67.536059039079
5 √n
29.082288043803
1 , 3 , 13 , 39 , 499 , 1069 , 1497 , 3207 , 6487 , 13897 , 19461 , 41691 , 533431 , 1600293 , 6934603 , 20803809
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20803808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20803809 can be divided by 16 positive divisors.
The sum of these divisors (counting 20803809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111000011100001
3
Ternary
1110010221110110
4
Quaternary
1033113003201
5
Quinary
20311210214
6
Senary
2021521533
8
Octal
117270341
10
Decimal
20803809
12
Duodecimal
6b732a9
16
Hexadecimal
13d70e1
20
Vigesimal
6a09a9
36
Base36
cdwbl
md5
9c0a6b575d74ee6b37d3efa6741b3602
sha1
8bd7bfc764b7607b8723a94cf4846ef595db6cee
sha256
d5ac74453c10fb0a0d7108e859d5a7e7024b3b9646ae03a535c2ebf382d6d521
sha512
1f803f0ea5f1e6e3e1dce0a508426a35da31b4728919803872e4c23694211a8d88d849d9d4e18e08c4a0b7b8074aca0c4b6bdac5537e717989a25904e17ad9c0
ripemd-160
4d8cba1f920ebc42b1dd5f83b096c5b7a9f29097
Diameter
41607618
Circumference
130714187.04217
Area
1.3596764904078E+15
Volume
3.7715266677645E+22
Surface area
5.4387059616312E+15
Circumference
130714187.04217
Perimeter
83215236
Area
432798468908481
Diagonal
29421028.836819
Surface area
2596790813450886
Volume
9.0038566826645E+21
Space diagonal
36033254.178959
Perimeter
62411427
Area
1.8740723439688E+14
Altitude
18016627.089479
Surface area
1.8740723439688E+14
Volume
1.0611146861906E+21
Height
9807009.6122732