20782390 is an even 8-digits composite number following 20782389
and preceding 20782391 . In scientific notation, it is written as 2.0782390 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors.
There are 7780608 positive integers (up to 20782390) that are relatively prime to 20782390.
20782390 has 32 divisors, whose sum is 39852000
The reverse of 20782390 is 09328702
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million seven hundred eighty-two thousand three hundred ninety
Scientific notation
2.0782390 × 10^7
Engineering notation
2.0782390 × 10^6
Prime Factorization
2 × 5 × 89 × 19 × 1229
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20782390
Product of the distinct prime numbers
The prime factorization of 20782390 is 2 × 5 × 89 × 19 × 1229.
Since it has a total of 5 prime factors.
4 , 2 , 71 , 82 , 829 , 189 , 5870 , 9447 , 53738 , 74623 , 205292 , 550461 , 2709619 , 2689075 , 33376423 , 47377653 , 779496698 , 630945947 , 3750669787 , 978056129
n×2
41564780
n×3
62347170
n×4
83129560
n×5
103911950
n÷2
10391195
n÷3
6927463.3333333
n÷3
5195597.5
n÷5
4156478
n2
431907734112100
n3
8.976074974334E+21
n4
1.8654429078585E+29
n5
3.8768362033849E+36
2 √n
4558.7706676252
3 √n
274.93613944141
4 √n
67.518669030315
5 √n
29.076297119548
1 , 2 , 5 , 10 , 19 , 38 , 89 , 95 , 178 , 190 , 445 , 890 , 1229 , 1691 , 2458 , 3382 , 6145 , 8455 , 12290 , 16910 , 23351 , 46702 , 109381 , 116755 , 218762 , 233510 , 546905 , 1093810 , 2078239 , 4156478 , 10391195 , 20782390
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20782389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20782390 can be divided by 32 positive divisors.
The sum of these divisors (counting 20782390) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001111010001110100110110
3
Ternary
1110002212002011
4
Quaternary
1033101310312
5
Quinary
20310014030
6
Senary
2021234434
8
Octal
117216466
10
Decimal
20782390
12
Duodecimal
6b62a1a
16
Hexadecimal
13d1d36
20
Vigesimal
69hfja
36
Base36
cdfsm
md5
09434c77325fe759f9a96ea553c1f956
sha1
134e5f2629ef374ca89f7ba62d91444fc34c1476
sha256
80f2e02fb2d1b655fddcb964e49d5b1b42e5ed5c6a469549a0769f4ea7b7c887
sha512
093d5a454708d9b35d4c944a4714a2afa8732f5d50af44aecc2ba1ebf4de7e00a10120e88a76dfd7c7ad6b3b1e441c1d598471976aabb0fd89f28d8e31ad55f5
ripemd-160
2614efd5c6be795c61eca7ea246b6e609d77e0bc
Diameter
41564780
Circumference
130579607.49608
Area
1.3568781645152E+15
Volume
3.7598894929918E+22
Surface area
5.4275126580607E+15
Circumference
130579607.49608
Perimeter
83129560
Area
431907734112100
Diagonal
29390737.796527
Surface area
2591446404672600
Volume
8.976074974334E+21
Space diagonal
35996155.382711
Perimeter
62347170
Area
1.8702153491603E+14
Altitude
17998077.691356
Surface area
1.8702153491603E+14
Volume
1.0578405804651E+21
Height
9796912.5988423