21090943 is an odd 8-digits composite number following 21090942
and preceding 21090944 . In scientific notation, it is written as 2.1090943 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20410560 positive integers (up to 21090943) that are relatively prime to 21090943.
21090943 has 4 divisors, whose sum is 21771328
The reverse of 21090943 is 34909012
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million ninety thousand nine hundred forty-three
Scientific notation
2.1090943 × 10^7
Engineering notation
2.1090943 × 10^6
Prime Factorization
31 × 680353
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21090943
Product of the distinct prime numbers
The prime factorization of 21090943 is 31 × 680353.
Since it has a total of 2 prime factors.
5 , 7 , 92 , 32 , 50 , 585 , 1885 , 5870 , 28622 , 74722 , 848107 , 857147 , 3446311 , 8246135 , 11018733 , 91033567 , 315647987 , 981866461 , 8458357893 , 3640192579
n×2
42181886
n×3
63272829
n×4
84363772
n×5
105454715
n÷2
10545471.5
n÷3
7030314.3333333
n÷3
5272735.75
n÷5
4218188.6
n2
444827876629249
n3
9.3818393907985E+21
n4
1.9787183982649E+29
n5
4.1733036950856E+36
2 √n
4592.4876700978
3 √n
276.29010576377
4 √n
67.767895570821
5 √n
29.162127176454
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
-21090942
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 21090943 can be divided by 4 positive divisors.
The sum of these divisors (counting 21090943) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101001001111111
3
Ternary
1110200112100001
4
Quaternary
1100131021333
5
Quinary
20344402233
6
Senary
2032015131
8
Octal
120351177
10
Decimal
21090943
12
Duodecimal
70914a7
16
Hexadecimal
141d27f
20
Vigesimal
6bg773
36
Base36
ck1vj
md5
7f13d7c81a11177127283a0dc52924fa
sha1
2d57d8a3633e0e1c1dd3c8b959ee1343ddd96482
sha256
d9bfddaebb9b8e9d7dd64415807011cc861c21d4bc60b5971c5ccc32970d40ef
sha512
642319fde2f2451b43b2f72b5ade6314d3456791494de294b24f1d1b113298ba6acd56042828b6452ebe1411e1e6e4bbebcd7a774cc2ab2a955fbe6f4401a1a8
ripemd-160
f1a475be8dac68c61d10f449ebe2f8081dea78a6
Diameter
42181886
Circumference
132518303.17216
Area
1.3974679893304E+15
Volume
3.9298556943056E+22
Surface area
5.5898719573216E+15
Circumference
132518303.17216
Perimeter
84363772
Area
444827876629249
Diagonal
29827097.633838
Surface area
2668967259775494
Volume
9.3818393907985E+21
Space diagonal
36530584.855539
Perimeter
63272829
Area
1.9261612073621E+14
Altitude
18265292.42777
Surface area
1.9261612073621E+14
Volume
1.1056603755395E+21
Height
9942365.877946