20391566 is an even 8-digits composite number following 20391565
and preceding 20391567 . In scientific notation, it is written as 2.0391566 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9366624 positive integers (up to 20391566) that are relatively prime to 20391566.
20391566 has 16 divisors, whose sum is 33097344
The reverse of 20391566 is 66519302
Previous prime number is 223
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million three hundred ninety-one thousand five hundred sixty-six
Scientific notation
2.0391566 × 10^7
Engineering notation
2.0391566 × 10^6
Prime Factorization
2 × 13 × 223 × 3517
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20391566
Product of the distinct prime numbers
The prime factorization of 20391566 is 2 × 13 × 223 × 3517.
Since it has a total of 4 prime factors.
9 , 9 , 18 , 49 , 120 , 440 , 4872 , 2153 , 66793 , 92611 , 930693 , 865696 , 9840352 , 1620584 , 33403060 , 69443800 , 844198185 , 42304844 , 2310066900 , 4436291135
n×2
40783132
n×3
61174698
n×4
81566264
n×5
101957830
n÷2
10195783
n÷3
6797188.6666667
n÷3
5097891.5
n÷5
4078313.2
n2
415815963932356
n3
8.4791386723803E+21
n4
1.7290291586099E+29
n5
3.5257612203719E+36
2 √n
4515.7021602404
3 √n
273.20178116651
4 √n
67.198974398724
5 √n
28.966106016115
1 , 2 , 13 , 26 , 223 , 446 , 2899 , 3517 , 5798 , 7034 , 45721 , 91442 , 784291 , 1568582 , 10195783 , 20391566
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
-20391565
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 20391566 can be divided by 16 positive divisors.
The sum of these divisors (counting 20391566) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110010011010001110
3
Ternary
1102100222222012
4
Quaternary
1031302122032
5
Quinary
20210012231
6
Senary
2005021222
8
Octal
115623216
10
Decimal
20391566
12
Duodecimal
69b4812
16
Hexadecimal
137268e
20
Vigesimal
678ii6
36
Base36
c528e
md5
e1fd27cb3a6a6aea7d8b90d0549465d7
sha1
14249516634b856a003160f4cbbc3c1ada99f3f5
sha256
798f1f6a45975df498679c84beb6d5ca767c732e2ff1e6551b33acc3362dcd34
sha512
659a334acb7fc8f4cc33329fc65e2e46065c564ee75780a9f84d2e0d7ebf7795082703ff62bf7c9657c4de59b288d8c8828d2069ce542477f9bd23697b510e6b
ripemd-160
43af141871d3f987b16ce7e2d06b5cbfd6fa3441
Diameter
40783132
Circumference
128123987.88158
Area
1.3063243775352E+15
Volume
3.5517333015892E+22
Surface area
5.225297510141E+15
Circumference
128123987.88158
Perimeter
81566264
Area
415815963932356
Diagonal
28838029.195226
Surface area
2494895783594136
Volume
8.4791386723803E+21
Space diagonal
35319228.357894
Perimeter
61174698
Area
1.8005359403227E+14
Altitude
17659614.178947
Surface area
1.8005359403227E+14
Volume
9.9927607564353E+20
Height
9612676.3984087