21084812 is an even 8-digits composite number following 21084811
and preceding 21084813 . In scientific notation, it is written as 2.1084812 × 10^7.
The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors.
There are 8933760 positive integers (up to 21084812) that are relatively prime to 21084812.
21084812 has 24 divisors, whose sum is 42648480
The reverse of 21084812 is 21848012
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eighty-four thousand eight hundred twelve
Scientific notation
2.1084812 × 10^7
Engineering notation
2.1084812 × 10^6
Prime Factorization
2 × 2 × 7 × 89 × 8461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10542406
Product of the distinct prime numbers
The prime factorization of 21084812 is 2 × 2 × 7 × 89 × 8461.
Since it has a total of 5 prime factors.
3 , 1 , 14 , 30 , 873 , 625 , 1135 , 5267 , 36642 , 89757 , 390498 , 367871 , 4430376 , 903680 , 21246381 , 66425042 , 674379317 , 521013791 , 9486999690 , 7792974240
n×2
42169624
n×3
63254436
n×4
84339248
n×5
105424060
n÷2
10542406
n÷3
7028270.6666667
n÷3
5271203
n÷5
4216962.4
n2
444569297075344
n3
9.3736600498058E+21
n4
1.9764185990207E+29
n5
4.1672414593654E+36
2 √n
4591.820118428
3 √n
276.26333125676
4 √n
67.762970112208
5 √n
29.160431531125
1 , 2 , 4 , 7 , 14 , 28 , 89 , 178 , 356 , 623 , 1246 , 2492 , 8461 , 16922 , 33844 , 59227 , 118454 , 236908 , 753029 , 1506058 , 3012116 , 5271203 , 10542406 , 21084812
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21084811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084812 can be divided by 24 positive divisors.
The sum of these divisors (counting 21084812) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000011011101010001100
3
Ternary
1110200012220222
4
Quaternary
1100123222030
5
Quinary
20344203222
6
Senary
2031530512
8
Octal
120335214
10
Decimal
21084812
12
Duodecimal
7089a38
16
Hexadecimal
141ba8c
20
Vigesimal
6bfc0c
36
Base36
cjx58
md5
13e78507113d9b97d3d885aa90644453
sha1
fa21c06aa205eddad59474a48222673c0be7d438
sha256
b31aef5189d56d3bb5e135a4f65e4ce2177dae6d90fe782c05531fbc7bdd5a61
sha512
4e81b5d55f74b25b0bff80204260bf3570067b09dab2c3ebb2811784c6cde8c4a756a368fca15a4efd63bab624b13a09f7c56bfddf717f1257aaccd7071b9dcd
ripemd-160
a7d743a76dc9e9f25deea0a85acc3b4c3d24d987
Diameter
42169624
Circumference
132479780.96304
Area
1.3966556377035E+15
Volume
3.9264295399624E+22
Surface area
5.5866225508139E+15
Circumference
132479780.96304
Perimeter
84339248
Area
444569297075344
Diagonal
29818427.090487
Surface area
2667415782452064
Volume
9.3736600498058E+21
Space diagonal
36519965.652038
Perimeter
63254436
Area
1.9250415250492E+14
Altitude
18259982.826019
Surface area
1.9250415250492E+14
Volume
1.1046964309592E+21
Height
9939475.696829