21306513 is an odd 8-digits composite number following 21306512
and preceding 21306514 . In scientific notation, it is written as 2.1306513 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 14204340 positive integers (up to 21306513) that are relatively prime to 21306513.
21306513 has 4 divisors, whose sum is 28408688
The reverse of 21306513 is 31560312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million three hundred six thousand five hundred thirteen
Scientific notation
2.1306513 × 10^7
Engineering notation
2.1306513 × 10^6
Prime Factorization
3 × 7102171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21306513
Product of the distinct prime numbers
The prime factorization of 21306513 is 3 × 7102171.
Since it has a total of 2 prime factors.
3 , 5 , 99 , 67 , 20 , 370 , 8396 , 1375 , 92454 , 12966 , 166413 , 893454 , 4239705 , 7475585 , 29022911 , 75548899 , 68875312 , 47325516 , 4192267688 , 156706291
n×2
42613026
n×3
63919539
n×4
85226052
n×5
106532565
n÷2
10653256.5
n÷3
7102171
n÷3
5326628.25
n÷5
4261302.6
n2
453967496219169
n3
9.6724643597712E+21
n4
2.060864876235E+29
n5
4.3909844276745E+36
2 √n
4615.8978541558
3 √n
277.22823487147
4 √n
67.940399278749
5 √n
29.221498013241
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21306512
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21306513 can be divided by 4 positive divisors.
The sum of these divisors (counting 21306513) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001010001110010010001
3
Ternary
1111002111001010
4
Quaternary
1101101302101
5
Quinary
20423302023
6
Senary
2040401133
8
Octal
121216221
10
Decimal
21306513
12
Duodecimal
71761a9
16
Hexadecimal
1451c91
20
Vigesimal
6d365d
36
Base36
coo7l
md5
9af99e3f1b10e1e8a08450fcdb60696a
sha1
5854d8af1ed9cad7bc9872fbc337a6504db02fcd
sha256
d382d7cc5cd3e9b23a6bd250dc89c3e99e188481c319f8d1b54e2b3eec0b996e
sha512
da773c0308b65d788126b35971bea17a3844dadb6e6c980e850a7ee591cdc365bfdf9d6e06e7d1d98e3fe979e006a05b747bdc4435fec09755c77d4ed65dd414
ripemd-160
b67a269dea86e478c648f6ef918713037c207046
Diameter
42613026
Circumference
133872769.42883
Area
1.4261809510907E+15
Volume
4.0515923966355E+22
Surface area
5.7047238043628E+15
Circumference
133872769.42883
Perimeter
85226052
Area
453967496219169
Diagonal
30131959.651479
Surface area
2723804977315014
Volume
9.6724643597712E+21
Space diagonal
36903963.048127
Perimeter
63919539
Area
1.9657369210911E+14
Altitude
18451981.524063
Surface area
1.9657369210911E+14
Volume
1.1399108565966E+21
Height
10043986.550493