20188521 is an odd 8-digits composite number following 20188520
and preceding 20188522 . In scientific notation, it is written as 2.0188521 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 20 positive divisors.
There are 13170168 positive integers (up to 20188521) that are relatively prime to 20188521.
20188521 has 20 divisors, whose sum is 30805632
The reverse of 20188521 is 12588102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-eight thousand five hundred twenty-one
Scientific notation
2.0188521 × 10^7
Engineering notation
2.0188521 × 10^6
Prime Factorization
3 × 3 × 3 × 3 × 47 × 5303
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
747723
Product of the distinct prime numbers
The prime factorization of 20188521 is 3 × 3 × 3 × 3 × 47 × 5303.
Since it has a total of 6 prime factors.
5 , 2 , 91 , 60 , 792 , 9 , 7435 , 3927 , 3974 , 28963 , 318683 , 43935 , 9511876 , 5233945 , 32927092 , 94101635 , 620512140 , 925246359 , 9742898867 , 7157947102
n×2
40377042
n×3
60565563
n×4
80754084
n×5
100942605
n÷2
10094260.5
n÷3
6729507
n÷3
5047130.25
n÷5
4037704.2
n2
407576380167441
n3
8.2283643101144E+21
n4
1.6611850567039E+29
n5
3.3536869402154E+36
2 √n
4493.1638073856
3 √n
272.29197039807
4 √n
67.031065987239
5 √n
28.908190021095
1 , 3 , 9 , 27 , 47 , 81 , 141 , 423 , 1269 , 3807 , 5303 , 15909 , 47727 , 143181 , 249241 , 429543 , 747723 , 2243169 , 6729507 , 20188521
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20188520
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20188521 can be divided by 20 positive divisors.
The sum of these divisors (counting 20188521) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001101000000110101101001
3
Ternary
1101222200110000
4
Quaternary
1031000311221
5
Quinary
20132013041
6
Senary
2000413213
8
Octal
115006551
10
Decimal
20188521
12
Duodecimal
6917209
16
Hexadecimal
1340d69
20
Vigesimal
663b61
36
Base36
c0pk9
md5
bed170f3f237b3fdabe5739f425c5321
sha1
ad62e7491b2cd12129378a4a95ad514ab9bd3a9b
sha256
4ab9fc3f9e4c9e99a16b7431cbe80a766e57fb44203b0b514885f296a80fa788
sha512
a962759421acc27580a4357bbec7e3314699334ab960a8a9ee1d10b48544611006d85b14dcb288e42f712557aef3d3caa4d309d80c13d5e565a4bb919e2ac767
ripemd-160
adca62ae65fc2140dd1c1790f0c7614238a67752
Diameter
40377042
Circumference
126848218.52089
Area
1.2804389617108E+15
Volume
3.4466891823621E+22
Surface area
5.121755846843E+15
Circumference
126848218.52089
Perimeter
80754084
Area
407576380167441
Diagonal
28550880.202454
Surface area
2445458281004646
Volume
8.2283643101144E+21
Space diagonal
34967544.101671
Perimeter
60565563
Area
1.7648574960375E+14
Altitude
17483772.050836
Surface area
1.7648574960375E+14
Volume
9.6972203362587E+20
Height
9516960.0674847