21498813 is an odd 8-digits composite number following 21498812
and preceding 21498814 . In scientific notation, it is written as 2.1498813 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 11404800 positive integers (up to 21498813) that are relatively prime to 21498813.
21498813 has 32 divisors, whose sum is 29329920
The reverse of 21498813 is 31889412
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million four hundred ninety-eight thousand eight hundred thirteen
Scientific notation
2.1498813 × 10^7
Engineering notation
2.1498813 × 10^6
Prime Factorization
23 × 9 × 7 × 37 × 401
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21498813
Product of the distinct prime numbers
The prime factorization of 21498813 is 23 × 9 × 7 × 37 × 401.
Since it has a total of 5 prime factors.
5 , 5 , 54 , 17 , 49 , 880 , 8858 , 4897 , 34956 , 4708 , 808571 , 437259 , 6983544 , 3223071 , 90594481 , 36334847 , 320663484 , 403198031 , 3513353226 , 5701728049
n×2
42997626
n×3
64496439
n×4
85995252
n×5
107494065
n÷2
10749406.5
n÷3
7166271
n÷3
5374703.25
n÷5
4299762.6
n2
462198960408969
n3
9.9367290186268E+21
n4
2.1362787900313E+29
n5
4.592745822275E+36
2 √n
4636.6812484793
3 √n
278.05977097572
4 √n
68.093180631245
5 √n
29.274055807788
1 , 7 , 9 , 23 , 37 , 63 , 161 , 207 , 259 , 333 , 401 , 851 , 1449 , 2331 , 2807 , 3609 , 5957 , 7659 , 9223 , 14837 , 25263 , 53613 , 64561 , 83007 , 103859 , 133533 , 341251 , 581049 , 934731 , 2388757 , 3071259 , 21498813
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21498812
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21498813 can be divided by 32 positive divisors.
The sum of these divisors (counting 21498813) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010000000101110111101
3
Ternary
1111110020211100
4
Quaternary
1102000232331
5
Quinary
21000430223
6
Senary
2044443313
8
Octal
122005675
10
Decimal
21498813
12
Duodecimal
7249539
16
Hexadecimal
1480bbd
20
Vigesimal
6e770d
36
Base36
cssl9
md5
3d6b48cd150e3e4fd2f07bc1e09b032e
sha1
a8fc639a653eb02cc2e1c2aafec07462269e181d
sha256
706aa29b9141b36e3fd98b04eb5678c70c4a77777d56fdef9bd24013a1921bbd
sha512
8bb8a1a3d1204f755e23582085d709e5792590755ccc71d00f4ec36dd68e2a28b8cfface75e6a2390f607d2c7943b80ffe83ad4956b1f100525ce020308b17c8
ripemd-160
8cda61143c9e61726abd3e81621e761fbfbacfbb
Diameter
42997626
Circumference
135081025.9634
Area
1.4520408585177E+15
Volume
4.1622873180841E+22
Surface area
5.8081634340706E+15
Circumference
135081025.9634
Perimeter
85995252
Area
462198960408969
Diagonal
30403912.919523
Surface area
2773193762453814
Volume
9.9367290186268E+21
Space diagonal
37237036.418422
Perimeter
64496439
Area
2.0013802065846E+14
Altitude
18618518.209211
Surface area
2.0013802065846E+14
Volume
1.171054745314E+21
Height
10134637.639841