20191690 is an even 8-digits composite number following 20191689
and preceding 20191691 . In scientific notation, it is written as 2.0191690 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 7962640 positive integers (up to 20191690) that are relatively prime to 20191690.
20191690 has 16 divisors, whose sum is 36858240
The reverse of 20191690 is 09619102
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred ninety-one thousand six hundred ninety
Scientific notation
2.0191690 × 10^7
Engineering notation
2.0191690 × 10^6
Prime Factorization
2 × 5 × 71 × 28439
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20191690
Product of the distinct prime numbers
The prime factorization of 20191690 is 2 × 5 × 71 × 28439.
Since it has a total of 4 prime factors.
4 , 9 , 92 , 78 , 815 , 113 , 3216 , 3953 , 42678 , 61422 , 62659 , 196788 , 7913465 , 5012292 , 44956104 , 6363683 , 643166574 , 14525698 , 7298325966 , 8501690898
n×2
40383380
n×3
60575070
n×4
80766760
n×5
100958450
n÷2
10095845
n÷3
6730563.3333333
n÷3
5047922.5
n÷5
4038338
n2
407704345056100
n3
8.2322397470258E+21
n4
1.6622283297762E+29
n5
3.356319914406E+36
2 √n
4493.5164403839
3 √n
272.30621691153
4 √n
67.033696305544
5 √n
28.909097510085
1 , 2 , 5 , 10 , 71 , 142 , 355 , 710 , 28439 , 56878 , 142195 , 284390 , 2019169 , 4038338 , 10095845 , 20191690
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
-20191689
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 20191690 can be divided by 16 positive divisors.
The sum of these divisors (counting 20191690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000001100111001010
3
Ternary
1101222211210101
4
Quaternary
1031001213022
5
Quinary
20132113230
6
Senary
2000440014
8
Octal
115014712
10
Decimal
20191690
12
Duodecimal
691900a
16
Hexadecimal
13419ca
20
Vigesimal
663j4a
36
Base36
c0s0a
md5
62decfeb42540e299ebf54c7ef30db65
sha1
379957263420e0077d6be0272d812b3e4fdbd95f
sha256
1814b50abd6fe3692ddc204cb0c760957fca006ad496245af9d368027bf8746e
sha512
2866dc50f62f1d290cd02f3100d4f1e9408f4cc35c44258d1e678af70fd79c9dbba5fbb9ccd0423e3329e40f2f7171ef9fd6866fa1cbaab2f9c55fa159ef1d97
ripemd-160
63dd22b6a2e08dace3983cde93b9e05dd4d15a22
Diameter
40383380
Circumference
126868129.93512
Area
1.2808409752649E+15
Volume
3.4483125215795E+22
Surface area
5.1233639010595E+15
Circumference
126868129.93512
Perimeter
80766760
Area
407704345056100
Diagonal
28555361.845233
Surface area
2446226070336600
Volume
8.2322397470258E+21
Space diagonal
34973032.97068
Perimeter
60575070
Area
1.7654116002594E+14
Altitude
17486516.48534
Surface area
1.7654116002594E+14
Volume
9.701787582459E+20
Height
9518453.9484111