20782389 is an odd 8-digits composite number following 20782388
and preceding 20782390 . In scientific notation, it is written as 2.0782389 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13821920 positive integers (up to 20782389) that are relatively prime to 20782389.
20782389 has 8 divisors, whose sum is 27775872
The reverse of 20782389 is 98328702
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million seven hundred eighty-two thousand three hundred eighty-nine
Scientific notation
2.0782389 × 10^7
Engineering notation
2.0782389 × 10^6
Prime Factorization
3 × 431 × 16073
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20782389
Product of the distinct prime numbers
The prime factorization of 20782389 is 3 × 431 × 16073.
Since it has a total of 3 prime factors.
2 , 1 , 77 , 32 , 909 , 32 , 5965 , 167 , 1546 , 64307 , 252548 , 285735 , 709524 , 1648004 , 42005636 , 29978468 , 761627732 , 622903459 , 871839937 , 2519649086
n×2
41564778
n×3
62347167
n×4
83129556
n×5
103911945
n÷2
10391194.5
n÷3
6927463
n÷3
5195597.25
n÷5
4156477.8
n2
431907692547321
n3
8.9760736786108E+21
n4
1.8654425488155E+29
n5
3.8768352706635E+36
2 √n
4558.7705579465
3 √n
274.93613503165
4 √n
67.518668218105
5 √n
29.076296839731
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
-20782388
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 20782389 can be divided by 8 positive divisors.
The sum of these divisors (counting 20782389) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010001110100110101
3
Ternary
1110002212002010
4
Quaternary
1033101310311
5
Quinary
20310014024
6
Senary
2021234433
8
Octal
117216465
10
Decimal
20782389
12
Duodecimal
6b62a19
16
Hexadecimal
13d1d35
20
Vigesimal
69hfj9
36
Base36
cdfsl
md5
b8af3585882f6efeb65aa4dbda88f82f
sha1
9a9c66bfee94d42c69feb3941bffbe71fc29008d
sha256
8a4ffd6b50af1b35257b317536989d4e42fa7b85c90c290a4e2c91c6a3ebdb9b
sha512
5ec872ca3522af4e0108f5e66c607674af0d09d680957fed3460aed087dbea0083d037fe5de084b5d4a1a39525f2184774787998b52bd00cea1053813a216ac1
ripemd-160
4a3e67dc2b7b9c033b63b298e882020ac922a61d
Diameter
41564778
Circumference
130579601.21289
Area
1.3568780339356E+15
Volume
3.7598889502406E+22
Surface area
5.4275121357423E+15
Circumference
130579601.21289
Perimeter
83129556
Area
431907692547321
Diagonal
29390736.382313
Surface area
2591446155283926
Volume
8.9760736786108E+21
Space diagonal
35996153.650661
Perimeter
62347167
Area
1.8702151691795E+14
Altitude
17998076.82533
Surface area
1.8702151691795E+14
Volume
1.0578404277626E+21
Height
9796912.1274378