21052565 is an odd 8-digits composite number following 21052564
and preceding 21052566 . In scientific notation, it is written as 2.1052565 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 16060800 positive integers (up to 21052565) that are relatively prime to 21052565.
21052565 has 16 divisors, whose sum is 26459136
The reverse of 21052565 is 56525012
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million fifty-two thousand five hundred sixty-five
Scientific notation
2.1052565 × 10^7
Engineering notation
2.1052565 × 10^6
Prime Factorization
5 × 31 × 71 × 1913
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21052565
Product of the distinct prime numbers
The prime factorization of 21052565 is 5 × 31 × 71 × 1913.
Since it has a total of 4 prime factors.
3 , 8 , 52 , 21 , 259 , 246 , 396 , 5076 , 4532 , 36909 , 480966 , 612212 , 4973589 , 3183794 , 6060050 , 56009677 , 574763349 , 523861357 , 6800045913 , 3100722324
n×2
42105130
n×3
63157695
n×4
84210260
n×5
105262825
n÷2
10526282.5
n÷3
7017521.6666667
n÷3
5263141.25
n÷5
4210513
n2
443210493079225
n3
9.3307177142324E+21
n4
1.9643554117553E+29
n5
4.135471998908E+36
2 √n
4588.3074221329
3 √n
276.12242083703
4 √n
67.737046157423
5 √n
29.151506507536
1 , 5 , 31 , 71 , 155 , 355 , 1913 , 2201 , 9565 , 11005 , 59303 , 135823 , 296515 , 679115 , 4210513 , 21052565
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21052564
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21052565 can be divided by 16 positive divisors.
The sum of these divisors (counting 21052565) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000010011110010010101
3
Ternary
1110121120200122
4
Quaternary
1100103302111
5
Quinary
20342140230
6
Senary
2031121325
8
Octal
120236225
10
Decimal
21052565
12
Duodecimal
7073245
16
Hexadecimal
1413c95
20
Vigesimal
6bbb85
36
Base36
cj89h
md5
7d01fc90655889bc59badf1a3aa8a52e
sha1
ad5eabe290c58f59f3823e73adbcd654579216b0
sha256
c4f108d0a7217389cd52c7c5e3728dfa46e5f13f751ade098e99a7ff53be7367
sha512
6e9b11b5de54c254aa7040bcf076d37a947d22bd9d6eabd5352e054c4bc32545bd5f292ef448772c308b1bd236982a744b12105c6388754e68e77bff9e335085
ripemd-160
61f3ecb053d722e0c27b5700fe66303798edacd6
Diameter
42105130
Circumference
132277167.08644
Area
1.3923868290516E+15
Volume
3.9084418965004E+22
Surface area
5.5695473162064E+15
Circumference
132277167.08644
Perimeter
84210260
Area
443210493079225
Diagonal
29772822.945741
Surface area
2659262958475350
Volume
9.3307177142324E+21
Space diagonal
36464112.209646
Perimeter
63157695
Area
1.9191577311522E+14
Altitude
18232056.104823
Surface area
1.9191577311522E+14
Volume
1.0996356281785E+21
Height
9924274.315247