20190787 is an odd 8-digits composite number following 20190786
and preceding 20190788 . In scientific notation, it is written as 2.0190787 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19128096 positive integers (up to 20190787) that are relatively prime to 20190787.
20190787 has 4 divisors, whose sum is 21253480
The reverse of 20190787 is 78709102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred ninety thousand seven hundred eighty-seven
Scientific notation
2.0190787 × 10^7
Engineering notation
2.0190787 × 10^6
Prime Factorization
19 × 1062673
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20190787
Product of the distinct prime numbers
The prime factorization of 20190787 is 19 × 1062673.
Since it has a total of 2 prime factors.
10 , 4 , 31 , 99 , 850 , 104 , 5163 , 9985 , 61955 , 68557 , 534367 , 702275 , 99897 , 6804286 , 34421309 , 92732776 , 72637206 , 284162847 , 9437441469 , 4261789291
n×2
40381574
n×3
60572361
n×4
80763148
n×5
100953935
n÷2
10095393.5
n÷3
6730262.3333333
n÷3
5047696.75
n÷5
4038157.4
n2
407667879679369
n3
8.2311353253478E+21
n4
1.6619310012227E+29
n5
3.3555694854385E+36
2 √n
4493.4159611592
3 √n
272.30215754883
4 √n
67.032946833323
5 √n
28.908838934582
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
-20190786
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 20190787 can be divided by 4 positive divisors.
The sum of these divisors (counting 20190787) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001011001000011
3
Ternary
1101222210112221
4
Quaternary
1031001121003
5
Quinary
20132101122
6
Senary
2000431511
8
Octal
115013103
10
Decimal
20190787
12
Duodecimal
6918597
16
Hexadecimal
1341643
20
Vigesimal
663gj7
36
Base36
c0rb7
md5
5b0f0fa298b747dd19d77d43e22d0a8b
sha1
3869bd507fb047d8e4b71913f32a844cdf21a483
sha256
96e55545570cd22dd95ff9219e22daf069c24c964dc7f0d7c8799810240719b6
sha512
924ea0518e82411f53263185085b79e280ae61f2f45da18fd23346799801047c757575230fe272f4ba8e0f35a85537b40a5533042241b22289cf6478c47b383e
ripemd-160
033e008e1e12c0df1fc679085ccdd77810d5faa2
Diameter
40381574
Circumference
126862456.21879
Area
1.2807264159052E+15
Volume
3.4478499025088E+22
Surface area
5.1229056636209E+15
Circumference
126862456.21879
Perimeter
80763148
Area
407667879679369
Diagonal
28554084.810386
Surface area
2446007278076214
Volume
8.2311353253478E+21
Space diagonal
34971468.928801
Perimeter
60572361
Area
1.7652537005464E+14
Altitude
17485734.464401
Surface area
1.7652537005464E+14
Volume
9.7004860090292E+20
Height
9518028.2701288