20684989 is an odd 8-digits composite number following 20684988
and preceding 20684990 . In scientific notation, it is written as 2.0684989 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 18923520 positive integers (up to 20684989) that are relatively prime to 20684989.
20684989 has 8 divisors, whose sum is 22474872
The reverse of 20684989 is 98948602
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million six hundred eighty-four thousand nine hundred eighty-nine
Scientific notation
2.0684989 × 10^7
Engineering notation
2.0684989 × 10^6
Prime Factorization
13 × 113 × 14081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20684989
Product of the distinct prime numbers
The prime factorization of 20684989 is 13 × 113 × 14081.
Since it has a total of 3 prime factors.
4 , 9 , 35 , 4 , 281 , 973 , 4184 , 2846 , 47458 , 51472 , 170911 , 65382 , 4120790 , 8369851 , 31692075 , 31808319 , 997755272 , 820107992 , 5800719114 , 1929059569
n×2
41369978
n×3
62054967
n×4
82739956
n×5
103424945
n÷2
10342494.5
n÷3
6894996.3333333
n÷3
5171247.25
n÷5
4136997.8
n2
427868769930121
n3
8.8504607994481E+21
n4
1.8307168428151E+29
n5
3.7868357755746E+36
2 √n
4548.0753072041
3 √n
274.5059515212
4 √n
67.439419534899
5 √n
29.048991457293
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
-20684988
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 20684989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20684989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010000010111101
3
Ternary
1102220220110201
4
Quaternary
1032322002331
5
Quinary
20243404424
6
Senary
2015203501
8
Octal
116720275
10
Decimal
20684989
12
Duodecimal
6b16591
16
Hexadecimal
13ba0bd
20
Vigesimal
695c99
36
Base36
cbcn1
md5
368ccbeeee0de2af9c93bc81bf578b55
sha1
7dbc9b7effa1870cbc7f24aa3d126061d4653a09
sha256
ff9ab1c1be539d417965e6b27a95bc90dc53bb3bb958dd5523fb5689b8a432b5
sha512
380ab96188abb445ab0b5614e5a52f52c025213fb4fc6da7f4b3c886edfc16cb655ac177231367c17bf0e53a3c792468240e250eb565a3973258e1b9ff7f76f8
ripemd-160
50053dd667ee57c0b762f749877f4d5e5a0c6993
Diameter
41369978
Circumference
129967618.96397
Area
1.344189384313E+15
Volume
3.7072723504574E+22
Surface area
5.3767575372519E+15
Circumference
129967618.96397
Perimeter
82739956
Area
427868769930121
Diagonal
29252991.981338
Surface area
2567212619580726
Volume
8.8504607994481E+21
Space diagonal
35827451.902003
Perimeter
62054967
Area
1.8527261212274E+14
Altitude
17913725.951002
Surface area
1.8527261212274E+14
Volume
1.0430368079859E+21
Height
9750997.3271128