20784405 is an odd 8-digits composite number following 20784404
and preceding 20784406 . In scientific notation, it is written as 2.0784405 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 10919040 positive integers (up to 20784405) that are relatively prime to 20784405.
20784405 has 16 divisors, whose sum is 33753024
The reverse of 20784405 is 50448702
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million seven hundred eighty-four thousand four hundred five
Scientific notation
2.0784405 × 10^7
Engineering notation
2.0784405 × 10^6
Prime Factorization
3 × 67 × 5 × 20681
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20784405
Product of the distinct prime numbers
The prime factorization of 20784405 is 3 × 67 × 5 × 20681.
Since it has a total of 4 prime factors.
7 , 10 , 34 , 71 , 32 , 913 , 9514 , 2022 , 43499 , 41105 , 249027 , 966682 , 7789195 , 9128570 , 29718022 , 58947004 , 735767937 , 59220148 , 3264499363 , 7467101137
n×2
41568810
n×3
62353215
n×4
83137620
n×5
103922025
n÷2
10392202.5
n÷3
6928135
n÷3
5196101.25
n÷5
4156881
n2
431991491204025
n3
8.9786861097384E+21
n4
1.8661664847268E+29
n5
3.8787160015988E+36
2 √n
4558.9916648312
3 √n
274.94502482333
4 √n
67.520305574184
5 √n
29.076860928297
1 , 3 , 5 , 15 , 67 , 201 , 335 , 1005 , 20681 , 62043 , 103405 , 310215 , 1385627 , 4156881 , 6928135 , 20784405
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
-20784404
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 20784405 can be divided by 16 positive divisors.
The sum of these divisors (counting 20784405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010010100010101
3
Ternary
1110002221211210
4
Quaternary
1033102110111
5
Quinary
20310100110
6
Senary
2021252033
8
Octal
117222425
10
Decimal
20784405
12
Duodecimal
6b64019
16
Hexadecimal
13d2515
20
Vigesimal
69i105
36
Base36
cdhcl
md5
5abf89d4caa1de5f2bd26793ea6b6251
sha1
2a4bff6067f52c747a2f96d76b55f0b49ffc856f
sha256
9640c8d5175e1473d3965d82fcd6e2443727b91d2e317835673b014a2ef48bdf
sha512
30c44e6a58214bdbae1116973ecfb21735ecb7e9554f9d3f11099d2d69758ee6770b8ab07eee6b2161a2414f04f2665c0afa29d4361e64dc09d351a4ed366044
ripemd-160
98ddc82542371218189e94d5ee00518be6ae00b2
Diameter
41568810
Circumference
130592268.11447
Area
1.3571412951799E+15
Volume
3.7609832428324E+22
Surface area
5.4285651807195E+15
Circumference
130592268.11447
Perimeter
83137620
Area
431991491204025
Diagonal
29393587.436855
Surface area
2591948947224150
Volume
8.9786861097384E+21
Space diagonal
35999645.465089
Perimeter
62353215
Area
1.870578028007E+14
Altitude
17999822.732544
Surface area
1.870578028007E+14
Volume
1.0581483057236E+21
Height
9797862.4789517