21497212 is an even 8-digits composite number following 21497211
and preceding 21497213 . In scientific notation, it is written as 2.1497212 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 9771440 positive integers (up to 21497212) that are relatively prime to 21497212.
21497212 has 12 divisors, whose sum is 41040216
The reverse of 21497212 is 21279412
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-seven thousand two hundred twelve
Scientific notation
2.1497212 × 10^7
Engineering notation
2.1497212 × 10^6
Prime Factorization
2 × 2 × 11 × 488573
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10748606
Product of the distinct prime numbers
The prime factorization of 21497212 is 2 × 2 × 11 × 488573.
Since it has a total of 4 prime factors.
2 , 6 , 37 , 98 , 578 , 420 , 1314 , 9543 , 41783 , 30225 , 742897 , 94855 , 9971492 , 3963873 , 49644878 , 89873410 , 717946047 , 762831538 , 7761331045 , 1419164022
n×2
42994424
n×3
64491636
n×4
85988848
n×5
107486060
n÷2
10748606
n÷3
7165737.3333333
n÷3
5374303
n÷5
4299442.4
n2
462130123772944
n3
9.9345092423332E+21
n4
2.135642512984E+29
n5
4.5910359857829E+36
2 √n
4636.5086002293
3 √n
278.05286850558
4 √n
68.091912884198
5 √n
29.273619791535
1 , 2 , 4 , 11 , 22 , 44 , 488573 , 977146 , 1954292 , 5374303 , 10748606 , 21497212
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
-21497211
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 21497212 can be divided by 12 positive divisors.
The sum of these divisors (counting 21497212) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010000000010101111100
3
Ternary
1111110011122001
4
Quaternary
1102000111330
5
Quinary
21000402322
6
Senary
2044432044
8
Octal
122002574
10
Decimal
21497212
12
Duodecimal
7248624
16
Hexadecimal
148057c
20
Vigesimal
6e730c
36
Base36
csrcs
md5
ef72dbd6c368bce254a0759e95569aa4
sha1
ccae20493804b8fc4fa9e5ba383daad97e66fb35
sha256
345dbed4e31c05033a9820196ecc96f1a9d93856000c185fefdf6dc9238f7d1f
sha512
bc5bd157de8383a3ec7127198b2764034cdfb6487bd781b85b5380f4da10ea8c707ed3d63afe020d65b8bd87bb1044e77cbd1f300b84b24537b1552775948dfb
ripemd-160
2bfea5c53d87f1833691c6699a98b4e6f30faf8a
Diameter
42994424
Circumference
135070966.58372
Area
1.4518246018476E+15
Volume
4.1613575003645E+22
Surface area
5.8072984073905E+15
Circumference
135070966.58372
Perimeter
85988848
Area
462130123772944
Diagonal
30401648.76361
Surface area
2772780742637664
Volume
9.9345092423332E+21
Space diagonal
37234263.405079
Perimeter
64491636
Area
2.0010821352071E+14
Altitude
18617131.70254
Surface area
2.0010821352071E+14
Volume
1.170793142169E+21
Height
10133882.921203