21125810 is an even 8-digits composite number following 21125809
and preceding 21125811 . In scientific notation, it is written as 2.1125810 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 8450320 positive integers (up to 21125810) that are relatively prime to 21125810.
21125810 has 8 divisors, whose sum is 38026476
The reverse of 21125810 is 01852112
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred twenty-five thousand eight hundred ten
Scientific notation
2.1125810 × 10^7
Engineering notation
2.1125810 × 10^6
Prime Factorization
2 × 5 × 2112581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21125810
Product of the distinct prime numbers
The prime factorization of 21125810 is 2 × 5 × 2112581.
Since it has a total of 3 prime factors.
5 , 2 , 63 , 88 , 974 , 475 , 6091 , 6807 , 91113 , 87012 , 423187 , 955350 , 278798 , 589542 , 52705877 , 66331298 , 879357728 , 244945312 , 3061062637 , 2291386753
n×2
42251620
n×3
63377430
n×4
84503240
n×5
105629050
n÷2
10562905
n÷3
7041936.6666667
n÷3
5281452.5
n÷5
4225162
n2
446299848156100
n3
9.4284457951746E+21
n4
1.9918355446416E+29
n5
4.2079139267345E+36
2 √n
4596.2821932514
3 √n
276.44227382032
4 √n
67.79588625611
5 √n
29.171762821272
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
-21125809
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 21125810 can be divided by 8 positive divisors.
The sum of these divisors (counting 21125810) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100101101010110010
3
Ternary
1110202022011102
4
Quaternary
1100211222302
5
Quinary
20402011220
6
Senary
2032444402
8
Octal
120455262
10
Decimal
21125810
12
Duodecimal
70a9702
16
Hexadecimal
1425ab2
20
Vigesimal
6c0eaa
36
Base36
ckss2
md5
bc83b1fc9bd1ede76e9d5dc9bee3ae2b
sha1
0104a3a1199cd214a512f57b794d21a0d8e9df7b
sha256
b4594eb90671a7ce5dfbb94a0bb9b334cb7e050b65b8f570d0d4c266f88b704d
sha512
a2928b193f5142c54f4ea56d7eb8098f98c062456d10aff46e23eafb24aa72e17af81fea4c20c48be8f89da665109b2bc590b09b65aa3db498bf1603a672cfec
ripemd-160
171bc9c875d454221227091ec3c6fc839a7c8464
Diameter
42251620
Circumference
132737378.99427
Area
1.4020923242654E+15
Volume
3.9493781393187E+22
Surface area
5.6083692970618E+15
Circumference
132737378.99427
Perimeter
84503240
Area
446299848156100
Diagonal
29876407.018117
Surface area
2677799088936600
Volume
9.4284457951746E+21
Space diagonal
36590976.271047
Perimeter
63377430
Area
1.9325350310416E+14
Altitude
18295488.135523
Surface area
1.9325350310416E+14
Volume
1.1111529929696E+21
Height
9958802.3393724