20805090 is an even 8-digits composite number following 20805089
and preceding 20805091 . In scientific notation, it is written as 2.0805090 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 5548016 positive integers (up to 20805090) that are relatively prime to 20805090.
20805090 has 16 divisors, whose sum is 49932288
The reverse of 20805090 is 09050802
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million eight hundred five thousand ninety
Scientific notation
2.0805090 × 10^7
Engineering notation
2.0805090 × 10^6
Prime Factorization
2 × 3 × 5 × 693503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20805090
Product of the distinct prime numbers
The prime factorization of 20805090 is 2 × 3 × 5 × 693503.
Since it has a total of 4 prime factors.
10 , 4 , 19 , 47 , 826 , 483 , 5193 , 5965 , 62737 , 43532 , 408897 , 584122 , 1529464 , 9421487 , 83252132 , 74443612 , 748373888 , 100600041 , 9829728309 , 450702406
n×2
41610180
n×3
62415270
n×4
83220360
n×5
104025450
n÷2
10402545
n÷3
6935030
n÷3
5201272.5
n÷5
4161018
n2
432851769908100
n3
9.0055200295973E+21
n4
1.8736065471257E+29
n5
3.898055283754E+36
2 √n
4561.2596944265
3 √n
275.03620459973
4 √n
67.537098652715
5 √n
29.082646184886
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 693503 , 1387006 , 2080509 , 3467515 , 4161018 , 6935030 , 10402545 , 20805090
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
-20805089
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 20805090 can be divided by 16 positive divisors.
The sum of these divisors (counting 20805090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111010111100010
3
Ternary
1110011000012220
4
Quaternary
1033113113202
5
Quinary
20311230330
6
Senary
2021531510
8
Octal
117272742
10
Decimal
20805090
12
Duodecimal
6b73b96
16
Hexadecimal
13d75e2
20
Vigesimal
6a0cea
36
Base36
cdxb6
md5
f6dffcb93f25ba3f7165da015f8ae019
sha1
fd965b6c3c3fc0e02a845c7ca6e6a68cb99b5121
sha256
81a8e4fc359743670787599299131c74143cf84ed9541465e5132c8fb16d7956
sha512
4dacc2a10494e38d2e5bcaee7c07f93b48c5b5b22369e8754858e0e3415e81a8e40398dcfe2251cf5629865ab97777626a41733cc37807f50d632e6109a7eca8
ripemd-160
aa9787f02c9246aae32dafba8c37a6383b0c5b96
Diameter
41610180
Circumference
130722235.80255
Area
1.3598439404366E+15
Volume
3.7722234088985E+22
Surface area
5.4393757617465E+15
Circumference
130722235.80255
Perimeter
83220360
Area
432851769908100
Diagonal
29422840.444393
Surface area
2597110619448600
Volume
9.0055200295973E+21
Space diagonal
36035472.936043
Perimeter
62415270
Area
1.8743031440674E+14
Altitude
18017736.468022
Surface area
1.8743031440674E+14
Volume
1.0613107135066E+21
Height
9807613.4814643