20681784 is an even 8-digits composite number following 20681783
and preceding 20681785 . In scientific notation, it is written as 2.0681784 × 10^7.
The sum of its digits is 36. It has a total of 6 prime factors and 32 positive divisors.
There are 6557760 positive integers (up to 20681784) that are relatively prime to 20681784.
20681784 has 32 divisors, whose sum is 40753440
The reverse of 20681784 is 48718602
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-one thousand seven hundred eighty-four
Scientific notation
2.0681784 × 10^7
Engineering notation
2.0681784 × 10^6
Prime Factorization
2 × 2 × 2 × 621 × 23 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5170446
Product of the distinct prime numbers
The prime factorization of 20681784 is 2 × 2 × 2 × 621 × 23 × 181.
Since it has a total of 6 prime factors.
1 , 6 , 79 , 27 , 379 , 937 , 7080 , 7921 , 36461 , 8566 , 513794 , 691028 , 7244530 , 2365981 , 44765681 , 42994839 , 187802392 , 274241684 , 3766755782 , 187448563
n×2
41363568
n×3
62045352
n×4
82727136
n×5
103408920
n÷2
10340892
n÷3
6893928
n÷3
5170446
n÷5
4136356.8
n2
427736189422656
n3
8.8463474786225E+21
n4
1.8295824774181E+29
n5
3.7839029608147E+36
2 √n
4547.7229467064
3 √n
274.49177317158
4 √n
67.436807061918
5 √n
29.048091212305
1 , 2 , 4 , 8 , 23 , 46 , 92 , 181 , 184 , 362 , 621 , 724 , 1242 , 1448 , 2484 , 4163 , 4968 , 8326 , 14283 , 16652 , 28566 , 33304 , 57132 , 112401 , 114264 , 224802 , 449604 , 899208 , 2585223 , 5170446 , 10340892 , 20681784
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
-20681783
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 20681784 can be divided by 32 positive divisors.
The sum of these divisors (counting 20681784) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110111001010000111000
3
Ternary
1102220202002000
4
Quaternary
1032321100320
5
Quinary
20243304114
6
Senary
2015141000
8
Octal
116712070
10
Decimal
20681784
12
Duodecimal
6b14760
16
Hexadecimal
13b9438
20
Vigesimal
695494
36
Base36
cba60
md5
7fd72dab794815edf01ef4269c95bb7f
sha1
eff82a569f669b930e9939c808efda39a461d69b
sha256
d78964e07c4210ac270952920755e344b7cf6ffc78e397e58b1387a5a3064181
sha512
1e5f8c494e438ed8526fc5719a38c99bfa8d86566fa5bbe508b41f8032f8357948c81458b4a50644586ca379b9907f5a5303f1c5e7693886a6c3aebe17cdfbaf
ripemd-160
d06bda80a46dd97b3c725ec048203401ba55ae2b
Diameter
41363568
Circumference
129947481.35506
Area
1.3437728703647E+15
Volume
3.7055493666591E+22
Surface area
5.3750914814588E+15
Circumference
129947481.35506
Perimeter
82727136
Area
427736189422656
Diagonal
29248459.426871
Surface area
2566417136535936
Volume
8.8463474786225E+21
Space diagonal
35821900.679165
Perimeter
62045352
Area
1.8521520307899E+14
Altitude
17910950.339583
Surface area
1.8521520307899E+14
Volume
1.0425520484777E+21
Height
9749486.4756236