21609910 is an even 8-digits composite number following 21609909
and preceding 21609911 . In scientific notation, it is written as 2.1609910 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 7409088 positive integers (up to 21609910) that are relatively prime to 21609910.
21609910 has 16 divisors, whose sum is 44454816
The reverse of 21609910 is 01990612
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six hundred nine thousand nine hundred ten
Scientific notation
2.1609910 × 10^7
Engineering notation
2.1609910 × 10^6
Prime Factorization
2 × 7 × 5 × 308713
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609910
Product of the distinct prime numbers
The prime factorization of 21609910 is 2 × 7 × 5 × 308713.
Since it has a total of 4 prime factors.
9 , 10 , 90 , 18 , 350 , 202 , 4458 , 7877 , 66850 , 1673 , 109031 , 177306 , 6541064 , 413646 , 86951299 , 48931809 , 533177482 , 713895212 , 106634509 , 4098146413
n×2
43219820
n×3
64829730
n×4
86439640
n×5
108049550
n÷2
10804955
n÷3
7203303.3333333
n÷3
5402477.5
n÷5
4321982
n2
466988210208100
n3
1.0091573193658E+22
n4
2.1807798847336E+29
n5
4.7126457038904E+36
2 √n
4648.6460394399
3 √n
278.53791438023
4 √n
68.18098004165
5 √n
29.304248712035
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 308713 , 617426 , 1543565 , 2160991 , 3087130 , 4321982 , 10804955 , 21609910
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609910 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110110110110
3
Ternary
1111122220020001
4
Quaternary
1102123312312
5
Quinary
21013004120
6
Senary
2051101514
8
Octal
122336666
10
Decimal
21609910
12
Duodecimal
72a189a
16
Hexadecimal
149bdb6
20
Vigesimal
6f14fa
36
Base36
cv6ba
md5
e471b2ce42cbbd0bf00b7038b942526f
sha1
4432601911a58bdf38cb32333e3d8a9c66681bb7
sha256
873b2782c179f9b81e6533ac2ba3373f730456074d342ab972e8e11dc07cc1ce
sha512
698d52c36351fb550842935e22ba26815addf6bf67fe547c3d97deb3c8da5cd1381ada9da9bf0b3aae88a5bdd18977adf53a8b6cae5520e918a777668cbb66ca
ripemd-160
4790fb339467b8c08bf092fa2a150b009f7ed4f5
Diameter
43219820
Circumference
135779069.00147
Area
1.4670867305028E+15
Volume
4.227148294448E+22
Surface area
5.8683469220113E+15
Circumference
135779069.00147
Perimeter
86439640
Area
466988210208100
Diagonal
30561027.803662
Surface area
2801929261248600
Volume
1.0091573193658E+22
Space diagonal
37429462.066991
Perimeter
64829730
Area
2.0221182665402E+14
Altitude
18714731.033495
Surface area
2.0221182665402E+14
Volume
1.189303306346E+21
Height
10187009.267887