20039987 is an odd 8-digits composite number following 20039986
and preceding 20039988 . In scientific notation, it is written as 2.0039987 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 18077800 positive integers (up to 20039987) that are relatively prime to 20039987.
20039987 has 8 divisors, whose sum is 22030272
The reverse of 20039987 is 78993002
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million thirty-nine thousand nine hundred eighty-seven
Scientific notation
2.0039987 × 10^7
Engineering notation
2.0039987 × 10^6
Prime Factorization
11 × 131 × 13907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20039987
Product of the distinct prime numbers
The prime factorization of 20039987 is 11 × 131 × 13907.
Since it has a total of 3 prime factors.
8 , 8 , 54 , 77 , 695 , 677 , 2028 , 3713 , 87630 , 57250 , 607022 , 152300 , 261373 , 2182344 , 59003726 , 13035444 , 956635405 , 287386622 , 6550839935 , 2071486497
n×2
40079974
n×3
60119961
n×4
80159948
n×5
100199935
n÷2
10019993.5
n÷3
6679995.6666667
n÷3
5009996.75
n÷5
4007997.4
n2
401601078960169
n3
8.0480804015478E+21
n4
1.6128342662197E+29
n5
3.2321177728198E+36
2 √n
4476.6044051267
3 √n
271.62254359291
4 √n
66.907431613586
5 √n
28.865526750147
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
-20039986
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 20039987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20039987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011100100100110011
3
Ternary
1101201010200202
4
Quaternary
1030130210303
5
Quinary
20112234422
6
Senary
1553305415
8
Octal
114344463
10
Decimal
20039987
12
Duodecimal
686526b
16
Hexadecimal
131c933
20
Vigesimal
654jj7
36
Base36
bxiyb
md5
0645263fb4cd5ff1de4482c084ce5666
sha1
7e96fcd287a8fe8a2d736f343de300a5972d0541
sha256
cf646d2bb782d2a9b0a24bff2b6b21102d1a6fe144cd8604194f0feef2ec1352
sha512
5fface7817302b4f9feb909a115349e9114c7eda3903f48411e03ea11310a2f5ec4f35db5be37efc79adafdaa64236090ad2ebc54b4e88d49245ee861765479c
ripemd-160
9c51406fc342a797afaa1996088cad5761dc31a5
Diameter
40079974
Circumference
125914951.87447
Area
1.261666999335E+15
Volume
3.3711720353337E+22
Surface area
5.04666799734E+15
Circumference
125914951.87447
Perimeter
80159948
Area
401601078960169
Diagonal
28340821.405181
Surface area
2409606473761014
Volume
8.0480804015478E+21
Space diagonal
34710275.66702
Perimeter
60119961
Area
1.7389836828337E+14
Altitude
17355137.83351
Surface area
1.7389836828337E+14
Volume
9.4847537124483E+20
Height
9446940.4683935