20843989 is an odd 8-digits composite number following 20843988
and preceding 20843990 . In scientific notation, it is written as 2.0843989 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 19617856 positive integers (up to 20843989) that are relatively prime to 20843989.
20843989 has 4 divisors, whose sum is 22070124
The reverse of 20843989 is 98934802
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million eight hundred forty-three thousand nine hundred eighty-nine
Scientific notation
2.0843989 × 10^7
Engineering notation
2.0843989 × 10^6
Prime Factorization
17 × 1226117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20843989
Product of the distinct prime numbers
The prime factorization of 20843989 is 17 × 1226117.
Since it has a total of 2 prime factors.
7 , 4 , 71 , 14 , 546 , 247 , 6148 , 9648 , 14651 , 70640 , 856487 , 551232 , 7165478 , 886722 , 6001753 , 80226062 , 145371952 , 480114565 , 6276822695 , 2232964322
n×2
41687978
n×3
62531967
n×4
83375956
n×5
104219945
n÷2
10421994.5
n÷3
6947996.3333333
n÷3
5210997.25
n÷5
4168797.8
n2
434471877432121
n3
9.0561270340045E+21
n4
1.8876581227939E+29
n5
3.9346325147277E+36
2 √n
4565.5217664578
3 √n
275.20750839354
4 √n
67.568644846984
5 √n
29.093513148132
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20843988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20843989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20843989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100000110111010101
3
Ternary
1110012222120121
4
Quaternary
1033200313111
5
Quinary
20314001424
6
Senary
2022431541
8
Octal
117406725
10
Decimal
20843989
12
Duodecimal
6b925b1
16
Hexadecimal
13e0dd5
20
Vigesimal
6a59j9
36
Base36
cerbp
md5
c982f981233ec236bf15a5cd3d4d6489
sha1
3d3d2d66515ba5ead15a2eb83ebd13fa21bfece3
sha256
6b0323baa09e89640a6b460297c11cb54128fd1d39b0ea49054f6d470010a949
sha512
d28d23d3879ba50545a0edb042e22f35b71a909ce838ed9f3f7f86063138881f0b8c1c9e738f56ca1d99f56a2d36453b2f249f8998e7f301d58591f94ffec10f
ripemd-160
69c8ffb41fcf23b51b0e5589109981bc3a3eaada
Diameter
41687978
Circumference
130966645.42781
Area
1.3649336583321E+15
Volume
3.7934216213339E+22
Surface area
5.4597346333285E+15
Circumference
130966645.42781
Perimeter
83375956
Area
434471877432121
Diagonal
29477851.937756
Surface area
2606831264592726
Volume
9.0561270340045E+21
Space diagonal
36102847.980407
Perimeter
62531967
Area
1.8813184154307E+14
Altitude
18051423.990203
Surface area
1.8813184154307E+14
Volume
1.0672748061719E+21
Height
9825950.6459185