20565389 is an odd 8-digits composite number following 20565388
and preceding 20565390 . In scientific notation, it is written as 2.0565389 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 18935280 positive integers (up to 20565389) that are relatively prime to 20565389.
20565389 has 8 divisors, whose sum is 22203552
The reverse of 20565389 is 98356502
Previous prime number is 443
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million five hundred sixty-five thousand three hundred eighty-nine
Scientific notation
2.0565389 × 10^7
Engineering notation
2.0565389 × 10^6
Prime Factorization
13 × 443 × 3571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20565389
Product of the distinct prime numbers
The prime factorization of 20565389 is 13 × 443 × 3571.
Since it has a total of 3 prime factors.
3 , 3 , 59 , 5 , 602 , 552 , 6927 , 3094 , 83444 , 69763 , 80813 , 396254 , 4012938 , 1554160 , 87537533 , 20602312 , 883549164 , 478136139 , 724413240 , 3079402212
n×2
41130778
n×3
61696167
n×4
82261556
n×5
102826945
n÷2
10282694.5
n÷3
6855129.6666667
n÷3
5141347.25
n÷5
4113077.8
n2
422935224721321
n3
8.6978274181964E+21
n4
1.7887420431007E+29
n5
3.6786175937022E+36
2 √n
4534.9078270677
3 √n
273.97586677176
4 √n
67.341724265627
5 √n
29.015321411893
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
-20565388
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 20565389 can be divided by 8 positive divisors.
The sum of these divisors (counting 20565389) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110011100110110001101
3
Ternary
1102200211102002
4
Quaternary
1032130312031
5
Quinary
20231043024
6
Senary
2012442045
8
Octal
116346615
10
Decimal
20565389
12
Duodecimal
6a79325
16
Hexadecimal
139cd8d
20
Vigesimal
68ad99
36
Base36
c8sct
md5
20d404bafd4835831a2de2efb83188c9
sha1
383afbb448b16a100409b4d99114eba2c8c3e673
sha256
d9732b0484efee0d82789bdbfa2b702a7da709627e473e6a34a0371e3573b080
sha512
ff86d68e533d7f8233e9042df66f4e310d6f81478c6563587486d7ea05e9dd42b74201ea66f216a2023dd5479ea0ff153320a33179cd68ee9075ead3b305711d
ripemd-160
c58bfdd0aa3202fcc7aef88e8e9ac9b02ce94c36
Diameter
41130778
Circumference
129216150.00123
Area
1.3286901949289E+15
Volume
3.6433374292264E+22
Surface area
5.3147607797154E+15
Circumference
129216150.00123
Perimeter
82261556
Area
422935224721321
Diagonal
29083852.039278
Surface area
2537611348327926
Volume
8.6978274181964E+21
Space diagonal
35620298.625418
Perimeter
61696167
Area
1.8313632438197E+14
Altitude
17810149.312709
Surface area
1.8313632438197E+14
Volume
1.0250487914995E+21
Height
9694617.3464262