21909513 is an odd 8-digits composite number following 21909512
and preceding 21909514 . In scientific notation, it is written as 2.1909513 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14211504 positive integers (up to 21909513) that are relatively prime to 21909513.
21909513 has 8 divisors, whose sum is 30002368
The reverse of 21909513 is 31590912
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million nine hundred nine thousand five hundred thirteen
Scientific notation
2.1909513 × 10^7
Engineering notation
2.1909513 × 10^6
Prime Factorization
3 × 37 × 197383
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21909513
Product of the distinct prime numbers
The prime factorization of 21909513 is 3 × 37 × 197383.
Since it has a total of 3 prime factors.
8 , 6 , 25 , 53 , 105 , 707 , 4747 , 4648 , 79917 , 71775 , 629338 , 470062 , 2471754 , 2912478 , 28890119 , 45515078 , 570167543 , 417151761 , 9971673548 , 5311381185
n×2
43819026
n×3
65728539
n×4
87638052
n×5
109547565
n÷2
10954756.5
n÷3
7303171
n÷3
5477378.25
n÷5
4381902.6
n2
480026759897169
n3
1.0517152536315E+22
n4
2.3042569021737E+29
n5
5.0485146553515E+36
2 √n
4680.7598742085
3 √n
279.81924132653
4 √n
68.416079061931
5 √n
29.385057498909
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21909512
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909513 can be divided by 8 positive divisors.
The sum of these divisors (counting 21909513) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100101000000001001
3
Ternary
1112020010012110
4
Quaternary
1103211000021
5
Quinary
21102101023
6
Senary
2101332533
8
Octal
123450011
10
Decimal
21909513
12
Duodecimal
7407149
16
Hexadecimal
14e5009
20
Vigesimal
6gidfd
36
Base36
d1lhl
md5
8ce057eb3eeb3aae0d82963f7cce924d
sha1
0a11a4199638098cc9406574ef951e2628c04888
sha256
eb8abf85a391482a034cf68b995680169e5e16e8160b768cbf58fd5401f19483
sha512
eca1b58a50f013cb8734227664419e4d41c7a4b66fea159cce509f2f80bd4dac13da3820124547ae35b00da10486e9f25c3b4128f7f75128185c1b912c07ff01
ripemd-160
a54cb00d90af9f17062f891c329cca8fc798a051
Diameter
43819026
Circumference
137661530.16906
Area
1.5080485424195E+15
Volume
4.405414552636E+22
Surface area
6.0321941696778E+15
Circumference
137661530.16906
Perimeter
87638052
Area
480026759897169
Diagonal
30984730.42959
Surface area
2880160559383014
Volume
1.0517152536315E+22
Space diagonal
37948389.685091
Perimeter
65728539
Area
2.0785768428364E+14
Altitude
18974194.842545
Surface area
2.0785768428364E+14
Volume
1.2394583128669E+21
Height
10328243.47653