21084789 is an odd 8-digits composite number following 21084788
and preceding 21084790 . In scientific notation, it is written as 2.1084789 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 12778640 positive integers (up to 21084789) that are relatively prime to 21084789.
21084789 has 8 divisors, whose sum is 30668832
The reverse of 21084789 is 98748012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million eighty-four thousand seven hundred eighty-nine
Scientific notation
2.1084789 × 10^7
Engineering notation
2.1084789 × 10^6
Prime Factorization
3 × 11 × 638933
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21084789
Product of the distinct prime numbers
The prime factorization of 21084789 is 3 × 11 × 638933.
Since it has a total of 3 prime factors.
2 , 7 , 20 , 84 , 87 , 499 , 5135 , 4955 , 65868 , 62652 , 120879 , 464171 , 6965681 , 4666306 , 90395299 , 16284599 , 127223563 , 78665024 , 6756038136 , 7822824164
n×2
42169578
n×3
63254367
n×4
84339156
n×5
105423945
n÷2
10542394.5
n÷3
7028263
n÷3
5271197.25
n÷5
4216957.8
n2
444568327174521
n3
9.3736293745577E+21
n4
1.9764099752675E+29
n5
4.1672187306011E+36
2 √n
4591.8176139738
3 √n
276.26323080438
4 √n
67.762951632686
5 √n
29.160425169292
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
-21084788
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 21084789 can be divided by 8 positive divisors.
The sum of these divisors (counting 21084789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011101001110101
3
Ternary
1110200012220010
4
Quaternary
1100123221311
5
Quinary
20344203124
6
Senary
2031530433
8
Octal
120335165
10
Decimal
21084789
12
Duodecimal
7089a19
16
Hexadecimal
141ba75
20
Vigesimal
6bfbj9
36
Base36
cjx4l
md5
679c10e58e998f8f66be4413aedc6fbe
sha1
ac70b059c24bc6b5ec99325be277e893ac02624c
sha256
6ebef925a2571c179d73eb1284434063b355abf2707acb88d429415a86973278
sha512
312203d0bda6e69239c5d721922c541acce1dfd06e4f42d43565ffe26ecff9bca8fe3736b60c4d5e6bee4a4c5e0c8bb741b8517fb28f278c80a801e3e86e41de
ripemd-160
43f78e9265b8612e2b68249935ea07a64c5681eb
Diameter
42169578
Circumference
132479636.44978
Area
1.3966525906702E+15
Volume
3.9264166907445E+22
Surface area
5.5866103626807E+15
Circumference
132479636.44978
Perimeter
84339156
Area
444568327174521
Diagonal
29818394.563575
Surface area
2667409963047126
Volume
9.3736293745577E+21
Space diagonal
36519925.814869
Perimeter
63254367
Area
1.9250373252554E+14
Altitude
18259962.907435
Surface area
1.9250373252554E+14
Volume
1.1046928158465E+21
Height
9939464.854525