21037521 is an odd 8-digits composite number following 21037520
and preceding 21037522 . In scientific notation, it is written as 2.1037521 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 14025012 positive integers (up to 21037521) that are relatively prime to 21037521.
21037521 has 4 divisors, whose sum is 28050032
The reverse of 21037521 is 12573012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million thirty-seven thousand five hundred twenty-one
Scientific notation
2.1037521 × 10^7
Engineering notation
2.1037521 × 10^6
Prime Factorization
3 × 7012507
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21037521
Product of the distinct prime numbers
The prime factorization of 21037521 is 3 × 7012507.
Since it has a total of 2 prime factors.
6 , 8 , 14 , 9 , 68 , 297 , 6752 , 7812 , 71036 , 7655 , 973769 , 152034 , 4527728 , 8537509 , 67655637 , 52365716 , 93593158 , 520609704 , 4939654192 , 7170829042
n×2
42075042
n×3
63112563
n×4
84150084
n×5
105187605
n÷2
10518760.5
n÷3
7012507
n÷3
5259380.25
n÷5
4207504.2
n2
442577289825441
n3
9.3107290288258E+21
n4
1.9587465746923E+29
n5
4.1207172198768E+36
2 √n
4586.6677446704
3 √n
276.05663351593
4 √n
67.724941821093
5 √n
29.147339027964
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
-21037520
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 21037521 can be divided by 4 positive divisors.
The sum of these divisors (counting 21037521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010000000111010001
3
Ternary
1110120211001110
4
Quaternary
1100100013101
5
Quinary
20341200041
6
Senary
2030523533
8
Octal
120200721
10
Decimal
21037521
12
Duodecimal
70665a9
16
Hexadecimal
14101d1
20
Vigesimal
6b9dg1
36
Base36
ciwnl
md5
210687f686c96aaf47de32aec660d5f7
sha1
b748e2f0159e3de890bb4d4b54b361bdc0831c02
sha256
c8c30119cf5f014d0a48983f9f718ac035ff399eb5f8f37e917ee255a29db8f6
sha512
b18e83d29196cc6c12d8c76788084d91e31a0eadccae3da43f5d2712a120705d949ab41a41034cb1bc32a27fff6644e8dbea92bed0a4fe9a7dd3020645eaf097
ripemd-160
6f308fe51c42919809b35c7586e4d7fc91dbfdd9
Diameter
42075042
Circumference
132182642.84668
Area
1.3903975623613E+15
Volume
3.9000690555366E+22
Surface area
5.5615902494451E+15
Circumference
132182642.84668
Perimeter
84150084
Area
442577289825441
Diagonal
29751547.516909
Surface area
2655463738952646
Volume
9.3107290288258E+21
Space diagonal
36438055.237297
Perimeter
63112563
Area
1.9164158806345E+14
Altitude
18219027.618649
Surface area
1.9164158806345E+14
Volume
1.0972799390122E+21
Height
9917182.5056363