20921535 is an odd 8-digits composite number following 20921534
and preceding 20921536 . In scientific notation, it is written as 2.0921535 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11158128 positive integers (up to 20921535) that are relatively prime to 20921535.
20921535 has 8 divisors, whose sum is 27895440
The reverse of 20921535 is 53512902
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million nine hundred twenty-one thousand five hundred thirty-five
Scientific notation
2.0921535 × 10^7
Engineering notation
2.0921535 × 10^6
Prime Factorization
5 × 9 × 464923
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921535
Product of the distinct prime numbers
The prime factorization of 20921535 is 5 × 9 × 464923.
Since it has a total of 3 prime factors.
4 , 5 , 38 , 76 , 760 , 3 , 9001 , 6807 , 36083 , 8690 , 229249 , 143892 , 1630480 , 7561645 , 80455733 , 54411087 , 276305285 , 785655539 , 2280817708 , 9418166980
n×2
41843070
n×3
62764605
n×4
83686140
n×5
104607675
n÷2
10460767.5
n÷3
6973845
n÷3
5230383.75
n÷5
4184307
n2
437710626756225
n3
9.1575781975523E+21
n4
1.9159059277533E+29
n5
4.0083692924198E+36
2 √n
4574.0064494926
3 √n
275.54837134288
4 √n
67.631401356859
5 √n
29.115128355419
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921534
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921535 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921535) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110010111111
3
Ternary
1110100220221200
4
Quaternary
1033303302333
5
Quinary
20323442120
6
Senary
2024230543
8
Octal
117636277
10
Decimal
20921535
12
Duodecimal
700b453
16
Hexadecimal
13f3cbf
20
Vigesimal
6af3gf
36
Base36
cgf5r
md5
80cfa059dc56b66e7a70f2e2175aaf5f
sha1
56252d46e7d91f7fa464b6a6f54675b517c08a94
sha256
f5a3bc2615c88b348fda06cd8376fe2c611cd604056893a7f422c7279def1bf8
sha512
f2a1324b6679d280a21f168373c311c798f20a8ca3ac619370e8603bb00b9b336e49169a08281e32302da71fb9092739e3c1ea5106cb99321cb9de88517ca181
ripemd-160
1880460fcf1c295b7e69c803c0c296e539ad6f9a
Diameter
41843070
Circumference
131453881.31564
Area
1.3751084894155E+15
Volume
3.8359173853472E+22
Surface area
5.5004339576622E+15
Circumference
131453881.31564
Perimeter
83686140
Area
437710626756225
Diagonal
29587518.542663
Surface area
2626263760537350
Volume
9.1575781975523E+21
Space diagonal
36237161.592331
Perimeter
62764605
Area
1.8953426113865E+14
Altitude
18118580.796165
Surface area
1.8953426113865E+14
Volume
1.0792309404559E+21
Height
9862506.1808878