20784939 is an odd 8-digits composite number following 20784938
and preceding 20784940 . In scientific notation, it is written as 2.0784939 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 11354640 positive integers (up to 20784939) that are relatively prime to 20784939.
20784939 has 8 divisors, whose sum is 21228480
The reverse of 20784939 is 93948702
Previous prime number is 161
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred eighty-four thousand nine hundred thirty-nine
Scientific notation
2.0784939 × 10^7
Engineering notation
2.0784939 × 10^6
Prime Factorization
69 × 161 × 1871
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20784939
Product of the distinct prime numbers
The prime factorization of 20784939 is 69 × 161 × 1871.
Since it has a total of 3 prime factors.
1 , 9 , 87 , 10 , 475 , 962 , 7154 , 6045 , 54834 , 15016 , 702404 , 870414 , 1794318 , 4784959 , 15920130 , 18703555 , 406921589 , 139242057 , 3558711129 , 1754103308
n×2
41569878
n×3
62354817
n×4
83139756
n×5
103924695
n÷2
10392469.5
n÷3
6928313
n÷3
5196234.75
n÷5
4156987.8
n2
432013689233721
n3
8.9793781778878E+21
n4
1.8663582768533E+29
n5
3.8792142936541E+36
2 √n
4559.050230037
3 √n
274.94737946352
4 √n
67.520739258667
5 √n
29.077010337281
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
-20784938
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 20784939 can be divided by 8 positive divisors.
The sum of these divisors (counting 20784939) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010010011100101011
3
Ternary
1110002222120120
4
Quaternary
1033102130223
5
Quinary
20310104224
6
Senary
2021254323
8
Octal
117223453
10
Decimal
20784939
12
Duodecimal
6b643a3
16
Hexadecimal
13d272b
20
Vigesimal
69i26j
36
Base36
cdhrf
md5
3a033408e3e940382a2ebf2d030d27a2
sha1
a7891a7e3045c5de049f9e6a11524b8b5e24fbe2
sha256
46f438caa3c1f420790dbd761851170bac97f275c31c0d60ec6fce8c74e46710
sha512
e1c368a492622b48361d9e59c1f8835ca1132d2f2d4148c680b85eef39489fd37a1999c5326285a20c99d369b9ffc33a306646447f116fbbfc530b679d87dfcd
ripemd-160
f9f2432de1ca3261316f94ac45efffdc112a1b6d
Diameter
41569878
Circumference
130595623.33542
Area
1.3572110323469E+15
Volume
3.7612731356609E+22
Surface area
5.4288441293875E+15
Circumference
130595623.33542
Perimeter
83139756
Area
432013689233721
Diagonal
29394342.626897
Surface area
2592082135402326
Volume
8.9793781778878E+21
Space diagonal
36000570.38022
Perimeter
62354817
Area
1.8706741482952E+14
Altitude
18000285.19011
Surface area
1.8706741482952E+14
Volume
1.0582298667372E+21
Height
9798114.2089658