20565391 is an odd 8-digits composite number following 20565390
and preceding 20565392 . In scientific notation, it is written as 2.0565391 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 15180480 positive integers (up to 20565391) that are relatively prime to 20565391.
20565391 has 16 divisors, whose sum is 26991360
The reverse of 20565391 is 19356502
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million five hundred sixty-five thousand three hundred ninety-one
Scientific notation
2.0565391 × 10^7
Engineering notation
2.0565391 × 10^6
Prime Factorization
7 × 19 × 11 × 14057
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20565391
Product of the distinct prime numbers
The prime factorization of 20565391 is 7 × 19 × 11 × 14057.
Since it has a total of 4 prime factors.
6 , 10 , 34 , 51 , 90 , 588 , 8607 , 5576 , 84109 , 56870 , 500440 , 990663 , 8102640 , 7046136 , 39834434 , 16044633 , 608810178 , 769104372 , 5360264063 , 3928700737
n×2
41130782
n×3
61696173
n×4
82261564
n×5
102826955
n÷2
10282695.5
n÷3
6855130.3333333
n÷3
5141347.75
n÷5
4113078.2
n2
422935306982881
n3
8.697829955808E+21
n4
1.788742738927E+29
n5
3.6786193824445E+36
2 √n
4534.9080475794
3 √n
273.97587565322
4 √n
67.341725902885
5 √n
29.015321976245
1 , 7 , 11 , 19 , 77 , 133 , 209 , 1463 , 14057 , 98399 , 154627 , 267083 , 1082389 , 1869581 , 2937913 , 20565391
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20565390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20565391 can be divided by 16 positive divisors.
The sum of these divisors (counting 20565391) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110011100110110001111
3
Ternary
1102200211102011
4
Quaternary
1032130312033
5
Quinary
20231043031
6
Senary
2012442051
8
Octal
116346617
10
Decimal
20565391
12
Duodecimal
6a79327
16
Hexadecimal
139cd8f
20
Vigesimal
68ad9b
36
Base36
c8scv
md5
60f6cfe54949f547bcf4c42095e2f4dd
sha1
04531ea10face0cff9834e5761f3c3edfd158a42
sha256
99fd3f34010f100526afe9d4d124da6baf154b466339ae22fd93be162e45d724
sha512
7ceb9ebcba3851b94db1c0ed9bd3b2a20cf4cca2698cacd191b574aa2a7576d5f41ff2d445319ff159fff05f730678bbc2527b72112a63b28ea84ec21371390b
ripemd-160
8a285d4ec2c662eec434848c1c972c7e1f1f9b06
Diameter
41130782
Circumference
129216162.5676
Area
1.3286904533612E+15
Volume
3.6433384921786E+22
Surface area
5.3147618134447E+15
Circumference
129216162.5676
Perimeter
82261564
Area
422935306982881
Diagonal
29083854.867706
Surface area
2537611841897286
Volume
8.697829955808E+21
Space diagonal
35620302.08952
Perimeter
61696173
Area
1.8313636000227E+14
Altitude
17810151.04476
Surface area
1.8313636000227E+14
Volume
1.0250490905599E+21
Height
9694618.2892352