20404809 is an odd 8-digits composite number following 20404808
and preceding 20404810 . In scientific notation, it is written as 2.0404809 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13575672 positive integers (up to 20404809) that are relatively prime to 20404809.
20404809 has 8 divisors, whose sum is 22717920
The reverse of 20404809 is 90840402
Previous prime number is 563
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred four thousand eight hundred nine
Scientific notation
2.0404809 × 10^7
Engineering notation
2.0404809 × 10^6
Prime Factorization
9 × 563 × 4027
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20404809
Product of the distinct prime numbers
The prime factorization of 20404809 is 9 × 563 × 4027.
Since it has a total of 3 prime factors.
3 , 1 , 90 , 55 , 300 , 760 , 9274 , 88 , 9346 , 58919 , 440295 , 17536 , 4154492 , 5698413 , 25503619 , 9484962 , 76765004 , 984724030 , 2602670323 , 3593101238
n×2
40809618
n×3
61214427
n×4
81619236
n×5
102024045
n÷2
10202404.5
n÷3
6801603
n÷3
5101202.25
n÷5
4080961.8
n2
416356230326481
n3
8.4956693557719E+21
n4
1.7335251053168E+29
n5
3.5372248670694E+36
2 √n
4517.1682501319
3 √n
273.26091064924
4 √n
67.209882086877
5 √n
28.969867360701
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
-20404808
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 20404809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20404809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101101001001001
3
Ternary
1102101200010200
4
Quaternary
1031311221021
5
Quinary
20210423214
6
Senary
2005202413
8
Octal
115655111
10
Decimal
20404809
12
Duodecimal
6a00409
16
Hexadecimal
1375a49
20
Vigesimal
67ac09
36
Base36
c5cg9
md5
d0505944173671100cdd7d3b6e53e56f
sha1
137a56f3bf441e2856ebdbd9ac44e1e58845984b
sha256
12b8db5746827b501e19706cb0fdbc96d22d5db4f9fa2fd274f4208404a7e9c7
sha512
ed8d94353b871e1098a77191112e060f5b8d920739831185c9fcd7574bfb649bfbb5f9d6b68d2d8169018fac9b8e837ddad55d6756a28662045ed9c237aecaad
ripemd-160
ffa151aa756fc2a0396b701e2b41024444112d9c
Diameter
40809618
Circumference
128207196.10461
Area
1.30802167447E+15
Volume
3.5586576580561E+22
Surface area
5.23208669788E+15
Circumference
128207196.10461
Perimeter
81619236
Area
416356230326481
Diagonal
28856757.625433
Surface area
2498137381958886
Volume
8.4956693557719E+21
Space diagonal
35342165.906739
Perimeter
61214427
Area
1.8028753624333E+14
Altitude
17671082.953369
Surface area
1.8028753624333E+14
Volume
1.0012242353642E+21
Height
9618919.2084775