20187385 is an odd 8-digits composite number following 20187384
and preceding 20187386 . In scientific notation, it is written as 2.0187385 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 15713280 positive integers (up to 20187385) that are relatively prime to 20187385.
20187385 has 4 divisors, whose sum is 20296692
The reverse of 20187385 is 58378102
Previous prime number is 185
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand three hundred eighty-five
Scientific notation
2.0187385 × 10^7
Engineering notation
2.0187385 × 10^6
Prime Factorization
185 × 109121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20187385
Product of the distinct prime numbers
The prime factorization of 20187385 is 185 × 109121.
Since it has a total of 2 prime factors.
3 , 2 , 100 , 62 , 817 , 540 , 296 , 910 , 23171 , 91225 , 731479 , 365293 , 3523061 , 9930440 , 456049 , 99565969 , 33331858 , 380576663 , 4348691021 , 6660209319
n×2
40374770
n×3
60562155
n×4
80749540
n×5
100936925
n÷2
10093692.5
n÷3
6729128.3333333
n÷3
5046846.25
n÷5
4037477
n2
407530513138225
n3
8.2269753679689E+21
n4
1.660811191387E+29
n5
3.3527434932839E+36
2 √n
4493.0373913423
3 √n
272.28686304886
4 √n
67.030123014525
5 √n
28.907864683315
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
-20187384
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 20187385 can be divided by 4 positive divisors.
The sum of these divisors (counting 20187385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000100011111001
3
Ternary
1101222121212221
4
Quaternary
1031000203321
5
Quinary
20131444020
6
Senary
2000404041
8
Octal
115004371
10
Decimal
20187385
12
Duodecimal
6916621
16
Hexadecimal
13408f9
20
Vigesimal
663895
36
Base36
c0oop
md5
9f8a047c4ed7b8f0b6847c8917711ce6
sha1
1811282e5589b1dfd903fff24c5f0832c344126d
sha256
0b9b19bbbe739b2019da637c5f1baebc12f828a4692d028d738ed4b2a11cd03a
sha512
54f64bf4d4e197f125b3b6ea29e1e362738846be193683c51889fee882cd3bfbf60aa5f00a8936f5b80f5050cd22796fea5fe8a3192664d1bb6c87e2b5774074
ripemd-160
4c0e6455a3f79c29c527bcf280c8e8c0c6ac9605
Diameter
40374770
Circumference
126841080.82238
Area
1.2802948661887E+15
Volume
3.4461073836367E+22
Surface area
5.1211794647549E+15
Circumference
126841080.82238
Perimeter
80749540
Area
407530513138225
Diagonal
28549273.655847
Surface area
2445183078829350
Volume
8.2269753679689E+21
Space diagonal
34965576.491954
Perimeter
60562155
Area
1.7646588859751E+14
Altitude
17482788.245977
Surface area
1.7646588859751E+14
Volume
9.6955834522425E+20
Height
9516424.5519491