20291809 is an odd 8-digits composite number following 20291808
and preceding 20291810 . In scientific notation, it is written as 2.0291809 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20090800 positive integers (up to 20291809) that are relatively prime to 20291809.
20291809 has 4 divisors, whose sum is 20492820
The reverse of 20291809 is 90819202
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million two hundred ninety-one thousand eight hundred nine
Scientific notation
2.0291809 × 10^7
Engineering notation
2.0291809 × 10^6
Prime Factorization
101 × 200909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20291809
Product of the distinct prime numbers
The prime factorization of 20291809 is 101 × 200909.
Since it has a total of 2 prime factors.
5 , 7 , 25 , 3 , 195 , 393 , 8538 , 5821 , 15275 , 28666 , 138672 , 680240 , 589970 , 218114 , 87589908 , 76704047 , 693149431 , 949045610 , 136633428 , 4885541848
n×2
40583618
n×3
60875427
n×4
81167236
n×5
101459045
n÷2
10145904.5
n÷3
6763936.3333333
n÷3
5072952.25
n÷5
4058361.8
n2
411757512492481
n3
8.3553047978125E+21
n4
1.69544249094E+29
n5
3.4403595196638E+36
2 √n
4504.6430491217
3 √n
272.75554514646
4 √n
67.116637647618
5 √n
28.937709541917
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
-20291808
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 20291809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20291809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011010000011100001
3
Ternary
1102011221010111
4
Quaternary
1031122003201
5
Quinary
20143314214
6
Senary
2002531321
8
Octal
115320341
10
Decimal
20291809
12
Duodecimal
6966b41
16
Hexadecimal
135a0e1
20
Vigesimal
66g9a9
36
Base36
c2x9d
md5
5eebdc3c8c62a6654997234e898fd5df
sha1
a0df01f9d4454343b6ca0ae297b9b041b78bc0a7
sha256
c738d9c332639e73c574c2dcf0afda7a658f592bfcf787a9b98f6590f3da5ab5
sha512
05af3ff0f4830cebba58cfbe3867e34578ecb55bb46960ffa2e524b933aa2e1f383b2701a3ebb27c05704313ba449a8e63ce563394606b50ca48f1455b4ceb63
ripemd-160
e309de8032aa9554a47219312d8f3aadec7a665b
Diameter
40583618
Circumference
127497196.16489
Area
1.2935743763068E+15
Volume
3.4998618895082E+22
Surface area
5.1742975052271E+15
Circumference
127497196.16489
Perimeter
81167236
Area
411757512492481
Diagonal
28696951.492884
Surface area
2470545074954886
Volume
8.3553047978125E+21
Space diagonal
35146444.165483
Perimeter
60875427
Area
1.7829623300879E+14
Altitude
17573222.082742
Surface area
1.7829623300879E+14
Volume
9.8468211356896E+20
Height
9565650.4976281