20187439 is an odd 8-digits composite number following 20187438
and preceding 20187440 . In scientific notation, it is written as 2.0187439 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20177656 positive integers (up to 20187439) that are relatively prime to 20187439.
20187439 has 4 divisors, whose sum is 20197224
The reverse of 20187439 is 93478102
Previous prime number is 2957
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand four hundred thirty-nine
Scientific notation
2.0187439 × 10^7
Engineering notation
2.0187439 × 10^6
Prime Factorization
2957 × 6827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20187439
Product of the distinct prime numbers
The prime factorization of 20187439 is 2957 × 6827.
Since it has a total of 2 prime factors.
10 , 6 , 11 , 39 , 501 , 89 , 6339 , 3063 , 21303 , 1769 , 577181 , 191613 , 5113195 , 5933825 , 56837736 , 13133495 , 21218258 , 718235502 , 7654041360 , 9135492004
n×2
40374878
n×3
60562317
n×4
80749756
n×5
100937195
n÷2
10093719.5
n÷3
6729146.3333333
n÷3
5046859.75
n÷5
4037487.8
n2
407532693378721
n3
8.2270413880886E+21
n4
1.6608289617251E+29
n5
3.352788335426E+36
2 √n
4493.0434006361
3 √n
272.28710583212
4 √n
67.030167839833
5 √n
28.907880148646
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
-20187438
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 20187439 can be divided by 4 positive divisors.
The sum of these divisors (counting 20187439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000100100101111
3
Ternary
1101222121221221
4
Quaternary
1031000210233
5
Quinary
20131444224
6
Senary
2000404211
8
Octal
115004457
10
Decimal
20187439
12
Duodecimal
6916667
16
Hexadecimal
134092f
20
Vigesimal
6638bj
36
Base36
c0oq7
md5
3eeadcec8be59222ab370e4ac590788f
sha1
9059af296bc4edc986b95bf5a70d71436c5e4b02
sha256
60c1131741e6d192da686c87d1588c8ada6fdadcd62dd460c1632205d56376e4
sha512
229e13aa332c8024cb07a616a029ddb08cc23581e18b75c7f6c5bcce565dd0e25ec2260ed6931bad1478b8d01d034fb95508f8c0571b1f176a589aa279968ced
ripemd-160
ee10c6c4b92f8ecdd312edbd1a82d95d0316ddb8
Diameter
40374878
Circumference
126841420.11438
Area
1.2803017156163E+15
Volume
3.4461350380798E+22
Surface area
5.121206862465E+15
Circumference
126841420.11438
Perimeter
80749756
Area
407532693378721
Diagonal
28549350.02338
Surface area
2445196160272326
Volume
8.2270413880886E+21
Space diagonal
34965670.022697
Perimeter
60562317
Area
1.7646683266933E+14
Altitude
17482835.011349
Surface area
1.7646683266933E+14
Volume
9.6956612576998E+20
Height
9516450.0077932