20519987 is an odd 8-digits composite number following 20519986
and preceding 20519988 . In scientific notation, it is written as 2.0519987 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 20042736 positive integers (up to 20519987) that are relatively prime to 20519987.
20519987 has 4 divisors, whose sum is 20997240
The reverse of 20519987 is 78991502
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million five hundred nineteen thousand nine hundred eighty-seven
Scientific notation
2.0519987 × 10^7
Engineering notation
2.0519987 × 10^6
Prime Factorization
43 × 477209
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20519987
Product of the distinct prime numbers
The prime factorization of 20519987 is 43 × 477209.
Since it has a total of 2 prime factors.
3 , 1 , 46 , 39 , 113 , 442 , 4269 , 6877 , 6585 , 97252 , 299655 , 467766 , 9107383 , 5049845 , 17302189 , 29920672 , 669332 , 622681189 , 5628330121 , 866147090
n×2
41039974
n×3
61559961
n×4
82079948
n×5
102599935
n÷2
10259993.5
n÷3
6839995.6666667
n÷3
5129996.75
n÷5
4103997.4
n2
421069866480169
n3
8.6403481862648E+21
n4
1.7729983245763E+29
n5
3.6381902571327E+36
2 √n
4529.8992262522
3 √n
273.77410030865
4 √n
67.304526045818
5 √n
29.002498717517
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
-20519986
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 20519987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20519987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110010001110000110011
3
Ternary
1102121112010112
4
Quaternary
1032101300303
5
Quinary
20223114422
6
Senary
2011451535
8
Octal
116216063
10
Decimal
20519987
12
Duodecimal
6a56bab
16
Hexadecimal
1391c33
20
Vigesimal
684jj7
36
Base36
c7tbn
md5
30ac1e83643b8d48543d50795429a5c7
sha1
6dff83d22b9ea78ccbf307631fc68f375f96f322
sha256
cf536cbe3e622a3b7987b56f8a797c8e630feecccfd223e4d4bf0c82f556614c
sha512
27d8a9df121e63eff39b7e8667d98044bfb75d17e4229d75a4153df08ea7cbed57718f05dc4bb9bf8d8efd452393358314bc5f529c11b98033d24d8e7d218bdc
ripemd-160
35f82ff34bd51a4ec0b90056c66231b79df9b870
Diameter
41039974
Circumference
128930880.82192
Area
1.3228299991821E+15
Volume
3.619260584857E+22
Surface area
5.2913199967285E+15
Circumference
128930880.82192
Perimeter
82079948
Area
421069866480169
Diagonal
29019643.91512
Surface area
2526419198881014
Volume
8.6403481862648E+21
Space diagonal
35541660.054653
Perimeter
61559961
Area
1.8232860056997E+14
Altitude
17770830.027326
Surface area
1.8232860056997E+14
Volume
1.0182747990535E+21
Height
9673214.6383732