21490969 is an odd 8-digits composite number following 21490968
and preceding 21490970 . In scientific notation, it is written as 2.1490969 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20910096 positive integers (up to 21490969) that are relatively prime to 21490969.
21490969 has 4 divisors, whose sum is 22071844
The reverse of 21490969 is 96909412
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million four hundred ninety thousand nine hundred sixty-nine
Scientific notation
2.1490969 × 10^7
Engineering notation
2.1490969 × 10^6
Prime Factorization
37 × 580837
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490969
Product of the distinct prime numbers
The prime factorization of 21490969 is 37 × 580837.
Since it has a total of 2 prime factors.
5 , 1 , 97 , 6 , 234 , 197 , 7343 , 69 , 6740 , 3125 , 240225 , 432244 , 2245250 , 1575441 , 89545779 , 47755858 , 690059154 , 408048798 , 4352455122 , 9507269996
n×2
42981938
n×3
64472907
n×4
85963876
n×5
107454845
n÷2
10745484.5
n÷3
7163656.3333333
n÷3
5372742.25
n÷5
4298193.8
n2
461861748558961
n3
9.9258565205664E+21
n4
2.1331627478194E+29
n5
4.5843734485342E+36
2 √n
4635.8353076873
3 √n
278.02594947806
4 √n
68.086968706848
5 √n
29.271919325059
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
-21490968
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 21490969 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490969) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110100011001
3
Ternary
1111102212001211
4
Quaternary
1101332310121
5
Quinary
21000202334
6
Senary
2044343121
8
Octal
121766431
10
Decimal
21490969
12
Duodecimal
7244aa1
16
Hexadecimal
147ed19
20
Vigesimal
6e6789
36
Base36
csmjd
md5
e27db6f6947c4d5c4d578662978e9c85
sha1
fe089a3f384cece165765142467ebe488754353b
sha256
1a9e8f4cfa5cd1f91927d41fb51f2df226e22454e5bbaee8260b4ccafd97879d
sha512
bd1694858a33b166d183c5ba1a4a5de71f49c823d11b0e1a9dd98475ed09fce327847949359e023c01ab72c8a25bdee0c9ce134f37512fc2f26b5059ec0e6986
ripemd-160
62da5f22efa08379febd1631b6d7113077ca7709
Diameter
42981938
Circumference
135031740.65785
Area
1.450981476247E+15
Volume
4.1577330567464E+22
Surface area
5.8039259049879E+15
Circumference
135031740.65785
Perimeter
85963876
Area
461861748558961
Diagonal
30392819.82834
Surface area
2771170491353766
Volume
9.9258565205664E+21
Space diagonal
37223450.211888
Perimeter
64472907
Area
1.9999200364418E+14
Altitude
18611725.105944
Surface area
1.9999200364418E+14
Volume
1.1697734091295E+21
Height
10130939.94278