20805590 is an even 8-digits composite number following 20805589
and preceding 20805591 . In scientific notation, it is written as 2.0805590 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 24 positive divisors.
There are 7673952 positive integers (up to 20805590) that are relatively prime to 20805590.
20805590 has 24 divisors, whose sum is 34349832
The reverse of 20805590 is 09550802
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred five thousand five hundred ninety
Scientific notation
2.0805590 × 10^7
Engineering notation
2.0805590 × 10^6
Prime Factorization
2 × 65 × 13 × 13 × 947
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1600430
Product of the distinct prime numbers
The prime factorization of 20805590 is 2 × 65 × 13 × 13 × 947.
Since it has a total of 5 prime factors.
2 , 2 , 3 , 5 , 165 , 259 , 6181 , 6713 , 56465 , 68580 , 256188 , 786969 , 7101191 , 5098625 , 14004572 , 25469140 , 995761267 , 394431716 , 5845351118 , 6415301335
n×2
41611180
n×3
62416770
n×4
83222360
n×5
104027950
n÷2
10402795
n÷3
6935196.6666667
n÷3
5201397.5
n÷5
4161118
n2
432872575248100
n3
9.0061693228561E+21
n4
1.8737866640192E+29
n5
3.8985237079052E+36
2 √n
4561.3145035176
3 √n
275.03840785866
4 √n
67.537504421748
5 √n
29.08278596975
1 , 2 , 13 , 26 , 65 , 130 , 169 , 338 , 845 , 947 , 1690 , 1894 , 10985 , 12311 , 21970 , 24622 , 61555 , 123110 , 160043 , 320086 , 800215 , 1600430 , 10402795 , 20805590
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20805589
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20805590 can be divided by 24 positive divisors.
The sum of these divisors (counting 20805590) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111010111011111010110
3
Ternary
1110011000220102
4
Quaternary
1033113133112
5
Quinary
20311234330
6
Senary
2021534102
8
Octal
117273726
10
Decimal
20805590
12
Duodecimal
6b74332
16
Hexadecimal
13d77d6
20
Vigesimal
6a0dja
36
Base36
cdxp2
md5
7b0847db4b1fe49767855914d61ba03b
sha1
8c8bdd5e801c5cdaa9a8f341db8845c1bda98fe7
sha256
2c1424741df8d981def2264679352f5b6bb7fbbac2a448ecee2658403ad87b11
sha512
350cb34f6088d8f4d6aa67f6d45aec753e410b8f96f4228c50dec0685f852e82dd073727f4ca59e69b98df3b3fe8ea413a20b4e5fc983b5318d826e2e1dafbc7
ripemd-160
55d429263906c099aa4a06da3e81d169654cf1d5
Diameter
41611180
Circumference
130725377.3952
Area
1.3599093023399E+15
Volume
3.7724953842227E+22
Surface area
5.4396372093597E+15
Circumference
130725377.3952
Perimeter
83222360
Area
432872575248100
Diagonal
29423547.551174
Surface area
2597235451488600
Volume
9.0061693228561E+21
Space diagonal
36036338.961447
Perimeter
62416770
Area
1.8743932338322E+14
Altitude
18018169.480723
Surface area
1.8743932338322E+14
Volume
1.061387233451E+21
Height
9807849.1837247