21125621 is an odd 8-digits composite number following 21125620
and preceding 21125622 . In scientific notation, it is written as 2.1125621 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 19149120 positive integers (up to 21125621) that are relatively prime to 21125621.
21125621 has 8 divisors, whose sum is 23113344
The reverse of 21125621 is 12652112
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred twenty-five thousand six hundred twenty-one
Scientific notation
2.1125621 × 10^7
Engineering notation
2.1125621 × 10^6
Prime Factorization
11 × 367 × 5233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21125621
Product of the distinct prime numbers
The prime factorization of 21125621 is 11 × 367 × 5233.
Since it has a total of 3 prime factors.
1 , 3 , 62 , 74 , 414 , 437 , 1083 , 7218 , 10263 , 58451 , 494630 , 742943 , 7549085 , 3898229 , 69346616 , 60467569 , 236389539 , 736946455 , 4054022548 , 6451618655
n×2
42251242
n×3
63376863
n×4
84502484
n×5
105628105
n÷2
10562810.5
n÷3
7041873.6666667
n÷3
5281405.25
n÷5
4225124.2
n2
446291862635641
n3
9.4281927454246E+21
n4
1.9917642665479E+29
n5
4.2077257016434E+36
2 √n
4596.2616331101
3 √n
276.44144942991
4 √n
67.795734623279
5 √n
29.171710624619
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
-21125620
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 21125621 can be divided by 8 positive divisors.
The sum of these divisors (counting 21125621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100101100111110101
3
Ternary
1110202021220102
4
Quaternary
1100211213311
5
Quinary
20402004441
6
Senary
2032443445
8
Octal
120454765
10
Decimal
21125621
12
Duodecimal
70a9585
16
Hexadecimal
14259f5
20
Vigesimal
6c0e11
36
Base36
cksmt
md5
169d91df82540cf0c910d48be7f9ff8b
sha1
69250673c31bd9d197bc761f456781bf8917dbd3
sha256
8de097ba817d93a7b96c5337390cbded7e33c8622311f2263b87c9968cc13303
sha512
8c679b8c5e5eecd3da2a3e66c50ada5d0a945699eeee796cd8e141492446925670069dac923406fdc0a5f383736f247563ec5f185c3957de86daa6cb755b705a
ripemd-160
13af84e0306663df5f24db0aa1d7b30a10783be5
Diameter
42251242
Circumference
132736191.47224
Area
1.402067237013E+15
Volume
3.9492721420873E+22
Surface area
5.6082689480521E+15
Circumference
132736191.47224
Perimeter
84502484
Area
446291862635641
Diagonal
29876139.731754
Surface area
2677751175813846
Volume
9.4281927454246E+21
Space diagonal
36590648.913444
Perimeter
63376863
Area
1.9325004527237E+14
Altitude
18295324.456722
Surface area
1.9325004527237E+14
Volume
1.1111231707706E+21
Height
9958713.243918