21609966 is an even 8-digits composite number following 21609965
and preceding 21609967 . In scientific notation, it is written as 2.1609966 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 6174264 positive integers (up to 21609966) that are relatively prime to 21609966.
21609966 has 16 divisors, whose sum is 49394304
The reverse of 21609966 is 66990612
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred nine thousand nine hundred sixty-six
Scientific notation
2.1609966 × 10^7
Engineering notation
2.1609966 × 10^6
Prime Factorization
2 × 3 × 7 × 514523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609966
Product of the distinct prime numbers
The prime factorization of 21609966 is 2 × 3 × 7 × 514523.
Since it has a total of 4 prime factors.
10 , 6 , 60 , 85 , 681 , 635 , 1054 , 1326 , 49918 , 86230 , 65681 , 558019 , 284808 , 5674914 , 81212095 , 3885520 , 287380765 , 493355427 , 147180730 , 1651157847
n×2
43219932
n×3
64829898
n×4
86439864
n×5
108049830
n÷2
10804983
n÷3
7203322
n÷3
5402491.5
n÷5
4321993.2
n2
466990630521156
n3
1.0091651647881E+22
n4
2.1808024899455E+29
n5
4.7127067660437E+36
2 √n
4648.6520626952
3 √n
278.53815498141
4 √n
68.181024212717
5 √n
29.304263899847
1 , 2 , 3 , 6 , 7 , 14 , 21 , 42 , 514523 , 1029046 , 1543569 , 3087138 , 3601661 , 7203322 , 10804983 , 21609966
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
-21609965
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 21609966 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609966) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110111101110
3
Ternary
1111122220022010
4
Quaternary
1102123313232
5
Quinary
21013004331
6
Senary
2051102050
8
Octal
122336756
10
Decimal
21609966
12
Duodecimal
72a1926
16
Hexadecimal
149bdee
20
Vigesimal
6f14i6
36
Base36
cv6cu
md5
7cc222dfa7830b1febc79650083d42b7
sha1
59069ba4bcb14ce509452df1fd5e0de275db7480
sha256
0a85b55892835bc50ef3494d773a43feaae6e03a38bb662354d280fde6a3f813
sha512
5a2d2e02ae3f7dcbf5eb1fe24f5db60d5e2623385503403b177c08c3c43cc437f6d31d012f9631f9bfd1c27603ca5d804a0093b57bea32b7f1032a1a754a3f71
ripemd-160
e70309f0ad3bf9b583ab7e8b16c4a3934a36adc1
Diameter
43219932
Circumference
135779420.85985
Area
1.4670943341405E+15
Volume
4.2271811572759E+22
Surface area
5.8683773365621E+15
Circumference
135779420.85985
Perimeter
86439864
Area
466990630521156
Diagonal
30561106.999621
Surface area
2801943783126936
Volume
1.0091651647881E+22
Space diagonal
37429559.061836
Perimeter
64829898
Area
2.0221287468032E+14
Altitude
18714779.530918
Surface area
2.0221287468032E+14
Volume
1.1893125522648E+21
Height
10187035.66654