21609971 is an odd 8-digits composite number following 21609970
and preceding 21609972 . In scientific notation, it is written as 2.1609971 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 21313872 positive integers (up to 21609971) that are relatively prime to 21609971.
21609971 has 4 divisors, whose sum is 21906072
The reverse of 21609971 is 17990612
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million six hundred nine thousand nine hundred seventy-one
Scientific notation
2.1609971 × 10^7
Engineering notation
2.1609971 × 10^6
Prime Factorization
73 × 296027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21609971
Product of the distinct prime numbers
The prime factorization of 21609971 is 73 × 296027.
Since it has a total of 2 prime factors.
7 , 1 , 48 , 90 , 391 , 618 , 8661 , 7568 , 89062 , 63709 , 15491 , 68789 , 4061132 , 857893 , 99923925 , 5411444 , 979531366 , 316610925 , 3228379427 , 21021118
n×2
43219942
n×3
64829913
n×4
86439884
n×5
108049855
n÷2
10804985.5
n÷3
7203323.6666667
n÷3
5402492.75
n÷5
4321994.2
n2
466990846620841
n3
1.0091658652742E+22
n4
2.1808045082765E+29
n5
4.7127122180524E+36
2 √n
4648.6526004854
3 √n
278.53817646364
4 √n
68.181028156559
5 √n
29.3042652559
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
-21609970
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 21609971 can be divided by 4 positive divisors.
The sum of these divisors (counting 21609971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010011011110111110011
3
Ternary
1111122220022022
4
Quaternary
1102123313303
5
Quinary
21013004341
6
Senary
2051102055
8
Octal
122336763
10
Decimal
21609971
12
Duodecimal
72a192b
16
Hexadecimal
149bdf3
20
Vigesimal
6f14ib
36
Base36
cv6cz
md5
ef6dd37e64d1f6325f8768a8cc3aca42
sha1
ef5b97f8eaf071185eefb9f49c8ea6fcf2ad967f
sha256
d11b12c2182461419eb14727304cc0d8d0af181819d4066772f8413a5a931854
sha512
7ba9b2b1c46792c4841d106df330d7fbf188fe061eaabf82af485b14bedc1ab154ac0a39350e3e9dd5fc8445d03c668d754e3f06f6888296a42d277dbfe41669
ripemd-160
2524f1d6daee66f4302712f5df44d7d13628d422
Diameter
43219942
Circumference
135779452.27578
Area
1.4670950130377E+15
Volume
4.2271840914653E+22
Surface area
5.8683800521508E+15
Circumference
135779452.27578
Perimeter
86439884
Area
466990846620841
Diagonal
30561114.070689
Surface area
2801945079725046
Volume
1.0091658652742E+22
Space diagonal
37429567.72209
Perimeter
64829913
Area
2.0221296825423E+14
Altitude
18714783.861045
Surface area
2.0221296825423E+14
Volume
1.1893133777956E+21
Height
10187038.023563