21609961 is an odd 8-digits composite number following 21609960
and preceding 21609962 . In scientific notation, it is written as 2.1609961 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21025872 positive integers (up to 21609961) that are relatively prime to 21609961.
21609961 has 4 divisors, whose sum is 22194052
The reverse of 21609961 is 16990612
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million six hundred nine thousand nine hundred sixty-one
Scientific notation
2.1609961 × 10^7
Engineering notation
2.1609961 × 10^6
Prime Factorization
37 × 584053
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21609961
Product of the distinct prime numbers
The prime factorization of 21609961 is 37 × 584053.
Since it has a total of 2 prime factors.
5 , 2 , 51 , 66 , 329 , 653 , 4978 , 6024 , 64003 , 97016 , 121891 , 395902 , 3273048 , 164256 , 91263340 , 85037497 , 370708354 , 162928081 , 3311344629 , 1603546891
n×2
43219922
n×3
64829883
n×4
86439844
n×5
108049805
n÷2
10804980.5
n÷3
7203320.3333333
n÷3
5402490.25
n÷5
4321992.2
n2
466990414421521
n3
1.0091644643023E+22
n4
2.1808004716158E+29
n5
4.71270131404E+36
2 √n
4648.6515249048
3 √n
278.53813349918
4 √n
68.181020268876
5 √n
29.304262543793
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
-21609960
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 21609961 can be divided by 4 positive divisors.
The sum of these divisors (counting 21609961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010011011110111101001
3
Ternary
1111122220021221
4
Quaternary
1102123313221
5
Quinary
21013004321
6
Senary
2051102041
8
Octal
122336751
10
Decimal
21609961
12
Duodecimal
72a1921
16
Hexadecimal
149bde9
20
Vigesimal
6f14i1
36
Base36
cv6cp
md5
971bdcbe2e728990766e9bcbbf6da145
sha1
e72d6e3ee5387d37ef693f9a3d065022bf62c2cd
sha256
e44b57142f56f4c2f8ed7862825f1c7719525632ad99af326642126de29e5bb7
sha512
dc869049a91e64d54df2dc8c1d5f888167fc6f03ac123207056f4d4c270f3e91dd1de0cc767531c86a0ac79c22d0f83c79ff2b7692993d877902c4269c8f6d5f
ripemd-160
bb5d4a2d9c7da539d6e1802c5aef49cf59f2193f
Diameter
43219922
Circumference
135779389.44392
Area
1.4670936552435E+15
Volume
4.2271782230879E+22
Surface area
5.868374620974E+15
Circumference
135779389.44392
Perimeter
86439844
Area
466990414421521
Diagonal
30561099.928554
Surface area
2801942486529126
Volume
1.0091644643023E+22
Space diagonal
37429550.401582
Perimeter
64829883
Area
2.0221278110643E+14
Altitude
18714775.200791
Surface area
2.0221278110643E+14
Volume
1.1893117267344E+21
Height
10187033.309518