21189969 is an odd 8-digits composite number following 21189968
and preceding 21189970 . In scientific notation, it is written as 2.1189969 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 13512312 positive integers (up to 21189969) that are relatively prime to 21189969.
21189969 has 12 divisors, whose sum is 31938816
The reverse of 21189969 is 96998112
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million one hundred eighty-nine thousand nine hundred sixty-nine
Scientific notation
2.1189969 × 10^7
Engineering notation
2.1189969 × 10^6
Prime Factorization
3 × 3 × 23 × 102367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7063323
Product of the distinct prime numbers
The prime factorization of 21189969 is 3 × 3 × 23 × 102367.
Since it has a total of 4 prime factors.
7 , 9 , 98 , 12 , 306 , 601 , 5355 , 195 , 13386 , 63251 , 72642 , 359499 , 9619778 , 4334795 , 51274844 , 72637736 , 804678223 , 669501017 , 4200488944 , 2363626468
n×2
42379938
n×3
63569907
n×4
84759876
n×5
105949845
n÷2
10594984.5
n÷3
7063323
n÷3
5297492.25
n÷5
4237993.8
n2
449014786220961
n3
9.5146094005638E+21
n4
2.0161427824506E+29
n5
4.2722003059701E+36
2 √n
4603.2563474132
3 √n
276.72184235277
4 √n
67.847301695891
5 √n
29.189460240786
1 , 3 , 9 , 23 , 69 , 207 , 102367 , 307101 , 921303 , 2354441 , 7063323 , 21189969
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21189968
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21189969 can be divided by 12 positive divisors.
The sum of these divisors (counting 21189969) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000110101010101010001
3
Ternary
1110212120011200
4
Quaternary
1100311111101
5
Quinary
20411034334
6
Senary
2034101413
8
Octal
120652521
10
Decimal
21189969
12
Duodecimal
711a869
16
Hexadecimal
1435551
20
Vigesimal
6c8ei9
36
Base36
cm6a9
md5
a79fa6288ab9caacceebb226ae6a9762
sha1
d76c7f66ad5975893782c94a3619e1d8b9bd3457
sha256
34b15523de7612739e83271b43d0edc38cd629a07fcc6a00b5de87bc62f4af87
sha512
b64d9c6407e70d231c8ec4b19f01801ea8b921715e3235ad9157034420d0cc5670e4713b9e64e2dc480241bbc712fe95fbcabfe596b63cbd7fa5417893c59292
ripemd-160
d42cb9b80d94b0c7bcecb998b4cadf6d42bbfc31
Diameter
42379938
Circumference
133140501.88039
Area
1.410621553745E+15
Volume
3.985470265945E+22
Surface area
5.6424862149798E+15
Circumference
133140501.88039
Perimeter
84759876
Area
449014786220961
Diagonal
29967141.546065
Surface area
2694088717325766
Volume
9.5146094005638E+21
Space diagonal
36702102.918809
Perimeter
63569907
Area
1.944291057711E+14
Altitude
18351051.459405
Surface area
1.944291057711E+14
Volume
1.1213074712467E+21
Height
9989047.1820218