20187939 is an odd 8-digits composite number following 20187938
and preceding 20187940 . In scientific notation, it is written as 2.0187939 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 13458624 positive integers (up to 20187939) that are relatively prime to 20187939.
20187939 has 4 divisors, whose sum is 26917256
The reverse of 20187939 is 93978102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred eighty-seven thousand nine hundred thirty-nine
Scientific notation
2.0187939 × 10^7
Engineering notation
2.0187939 × 10^6
Prime Factorization
3 × 6729313
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20187939
Product of the distinct prime numbers
The prime factorization of 20187939 is 3 × 6729313.
Since it has a total of 2 prime factors.
8 , 2 , 27 , 13 , 747 , 864 , 4700 , 4076 , 43674 , 4440 , 664764 , 931351 , 4972448 , 6558489 , 46219952 , 80828359 , 170550280 , 626107112 , 9910587775 , 4683269795
n×2
40375878
n×3
60563817
n×4
80751756
n×5
100939695
n÷2
10093969.5
n÷3
6729313
n÷3
5046984.75
n÷5
4037587.8
n2
407552881067721
n3
8.2276527022694E+21
n4
1.660993508666E+29
n5
3.3532035632345E+36
2 √n
4493.0990418641
3 √n
272.28935380472
4 √n
67.030582884711
5 √n
28.90802334459
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
-20187938
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 20187939 can be divided by 4 positive divisors.
The sum of these divisors (counting 20187939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000101100100011
3
Ternary
1101222122122110
4
Quaternary
1031000230203
5
Quinary
20132003224
6
Senary
2000410403
8
Octal
115005443
10
Decimal
20187939
12
Duodecimal
6916a03
16
Hexadecimal
1340b23
20
Vigesimal
6639gj
36
Base36
c0p43
md5
f758358c504337488be957ec28ec1905
sha1
b73fc9becb57e10ee8a87ecac2156636c177e2fe
sha256
50b17d4c8767053130d862134b89639598a132515a94e9b0e1a9a767c06c06a3
sha512
489265b1a17bc43f7ae108184d88892729294be86627b1fe43392a8c661437e3c608380fc26b47fb01964b57af88a3e937c009f22173e36bb13b9f49f8b8ad1a
ripemd-160
9b4860e40b92e6de6f9e4fe55b87c1e6d627ba1d
Diameter
40375878
Circumference
126844561.70704
Area
1.2803651371117E+15
Volume
3.446391104765E+22
Surface area
5.1214605484468E+15
Circumference
126844561.70704
Perimeter
80751756
Area
407552881067721
Diagonal
28550057.130161
Surface area
2445317286406326
Volume
8.2276527022694E+21
Space diagonal
34966536.048101
Perimeter
60563817
Area
1.7647557419509E+14
Altitude
17483268.024051
Surface area
1.7647557419509E+14
Volume
9.6963816983709E+20
Height
9516685.7100536