21609916 is an even 8-digits composite number following 21609915
and preceding 21609917 . In scientific notation, it is written as 2.1609916 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 10236240 positive integers (up to 21609916) that are relatively prime to 21609916.
21609916 has 12 divisors, whose sum is 39807880
The reverse of 21609916 is 61990612
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million six hundred nine thousand nine hundred sixteen
Scientific notation
2.1609916 × 10^7
Engineering notation
2.1609916 × 10^6
Prime Factorization
2 × 2 × 19 × 284341
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10804958
Product of the distinct prime numbers
The prime factorization of 21609916 is 2 × 2 × 19 × 284341.
Since it has a total of 4 prime factors.
2 , 5 , 23 , 74 , 975 , 485 , 2270 , 9307 , 26809 , 23583 , 181928 , 114433 , 7295229 , 135917 , 28214476 , 64618152 , 842638342 , 784871778 , 4358759908 , 9673320426
n×2
43219832
n×3
64829748
n×4
86439664
n×5
108049580
n÷2
10804958
n÷3
7203305.3333333
n÷3
5402479
n÷5
4321983.2
n2
466988469527056
n3
1.0091581599448E+22
n4
2.1807823067122E+29
n5
4.7126522462337E+36
2 √n
4648.646684789
3 √n
278.53794015895
4 √n
68.180984774268
5 √n
29.304250339302
1 , 2 , 4 , 19 , 38 , 76 , 284341 , 568682 , 1137364 , 5402479 , 10804958 , 21609916
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609915
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609916 can be divided by 12 positive divisors.
The sum of these divisors (counting 21609916) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010011011110110111100
3
Ternary
1111122220020021
4
Quaternary
1102123312330
5
Quinary
21013004131
6
Senary
2051101524
8
Octal
122336674
10
Decimal
21609916
12
Duodecimal
72a18a4
16
Hexadecimal
149bdbc
20
Vigesimal
6f14fg
36
Base36
cv6bg
md5
7504e751f078711c33c44837903bb9d2
sha1
a31d4d276a6c97efe2a4ca17cb929dc34392ef4d
sha256
279b5f6ba12b16338673d2e4005f6d18672c443002451fa657ef44db45332231
sha512
6ab39140dbed01da7c122256e5433ab2c998c9ba2844507ac48cbd1df0e3ee81067c9c3b9cf2585a7420daa5241306d964b678e0c5e6ba876a2128f234d4aa53
ripemd-160
1b18bc142cb6a1220b8c5f2703e8b24070a37fd4
Diameter
43219832
Circumference
135779106.70059
Area
1.4670875451773E+15
Volume
4.2271518154571E+22
Surface area
5.8683501807094E+15
Circumference
135779106.70059
Perimeter
86439664
Area
466988469527056
Diagonal
30561036.288943
Surface area
2801930817162336
Volume
1.0091581599448E+22
Space diagonal
37429472.459296
Perimeter
64829748
Area
2.0221193894242E+14
Altitude
18714736.229648
Surface area
2.0221193894242E+14
Volume
1.1893042969779E+21
Height
10187012.096314