21081429 is an odd 8-digits composite number following 21081428
and preceding 21081430 . In scientific notation, it is written as 2.1081429 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 14054280 positive integers (up to 21081429) that are relatively prime to 21081429.
21081429 has 6 divisors, whose sum is 30450966
The reverse of 21081429 is 92418012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million eighty-one thousand four hundred twenty-nine
Scientific notation
2.1081429 × 10^7
Engineering notation
2.1081429 × 10^6
Prime Factorization
3 × 3 × 2342381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7027143
Product of the distinct prime numbers
The prime factorization of 21081429 is 3 × 3 × 2342381.
Since it has a total of 3 prime factors.
8 , 6 , 80 , 78 , 431 , 406 , 5960 , 5683 , 36601 , 60194 , 777801 , 291997 , 9914597 , 1825669 , 34864624 , 43267261 , 150723528 , 744670521 , 8274818559 , 5752901025
n×2
42162858
n×3
63244287
n×4
84325716
n×5
105407145
n÷2
10540714.5
n÷3
7027143
n÷3
5270357.25
n÷5
4216285.8
n2
444426648682041
n3
9.3691488398984E+21
n4
1.9751504605875E+29
n5
4.1638994199193E+36
2 √n
4591.4517312066
3 √n
276.24855523633
4 √n
67.760251853182
5 √n
29.159495728883
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21081428
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21081429 can be divided by 6 positive divisors.
The sum of these divisors (counting 21081429) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000011010110101010101
3
Ternary
1110200001021200
4
Quaternary
1100122311111
5
Quinary
20344101204
6
Senary
2031503113
8
Octal
120326525
10
Decimal
21081429
12
Duodecimal
7087a99
16
Hexadecimal
141ad55
20
Vigesimal
6bf3b9
36
Base36
cjuj9
md5
ea32bb7e03e37d8601490e87c86db487
sha1
4e89826b0ae20f2fcd2281b85e70dbab5cbb1594
sha256
f533d11e838951466f58d5d961f85ef0f85a9819ccd4b016e269e4d301505060
sha512
4ae736d7114df9148deec62370ce6116543b914f5a735299b0d2952ea16b663a0f13960c8010cdbbacf8d75689b921a337081a132d8bd9989b29564159c0c15e
ripemd-160
a65a95912daae2eaea4b2c7d1b3f8ef8de65505e
Diameter
42162858
Circumference
132458524.94715
Area
1.396207494559E+15
Volume
3.9245398887752E+22
Surface area
5.5848299782361E+15
Circumference
132458524.94715
Perimeter
84325716
Area
444426648682041
Diagonal
29813642.806005
Surface area
2666559892092246
Volume
9.3691488398984E+21
Space diagonal
36514106.124156
Perimeter
63244287
Area
1.9244238393871E+14
Altitude
18257053.062078
Surface area
1.9244238393871E+14
Volume
1.104164779773E+21
Height
9937880.9353352