28105439 is an odd 8-digits composite number following 28105438
and preceding 28105440 . In scientific notation, it is written as 2.8105439 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28009224 positive integers (up to 28105439) that are relatively prime to 28105439.
28105439 has 4 divisors, whose sum is 28201656
The reverse of 28105439 is 93450182
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million one hundred five thousand four hundred thirty-nine
Scientific notation
2.8105439 × 10^7
Engineering notation
2.8105439 × 10^6
Prime Factorization
293 × 95923
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28105439
Product of the distinct prime numbers
The prime factorization of 28105439 is 293 × 95923.
Since it has a total of 2 prime factors.
9 , 8 , 69 , 11 , 261 , 477 , 2776 , 3851 , 27008 , 18784 , 584112 , 598875 , 1141681 , 7183920 , 56693048 , 17208387 , 373732168 , 708061597 , 4247434327 , 3285886625
n×2
56210878
n×3
84316317
n×4
112421756
n×5
140527195
n÷2
14052719.5
n÷3
9368479.6666667
n÷3
7026359.75
n÷5
5621087.8
n2
789915701382721
n3
2.2200927560354E+22
n4
6.2396681529096E+29
n5
1.7536861265184E+37
2 √n
5301.456309355
3 √n
304.03958034394
4 √n
72.81110017954
5 √n
30.885744513848
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
-28105438
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 28105439 can be divided by 4 positive divisors.
The sum of these divisors (counting 28105439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011001101101011011111
3
Ternary
1221212220102012
4
Quaternary
1223031223133
5
Quinary
24143333224
6
Senary
2442221435
8
Octal
153155337
10
Decimal
28105439
12
Duodecimal
94b487b
16
Hexadecimal
1acdadf
20
Vigesimal
8fd3bj
36
Base36
gqean
md5
f30017f42e0b7f9440627d87a02fd861
sha1
6c3981f6f890a2e67c0f19a20a7bcc34e18ff09f
sha256
f602071d078febed6d5972d93ac9bb9f03ab4f42d3f29a670ab87a2e24c14fa7
sha512
9406ea164930d90a0bf1faebb32b158a532ede6ec080ce5d7056a00670ac8421f79567918c65af1c9352439ff7d44c2f44dd21ad8eb9bfcada489f65a41682e0
ripemd-160
336f8aa1934f2650cca7057dae76f9ef04eaf9c4
Diameter
56210878
Circumference
176591681.37663
Area
2.4815933644192E+15
Volume
9.2995027901984E+22
Surface area
9.9263734576767E+15
Circumference
176591681.37663
Perimeter
112421756
Area
789915701382721
Diagonal
39747093.01025
Surface area
4739494208296326
Volume
2.2200927560354E+22
Space diagonal
48680048.317028
Perimeter
84316317
Area
3.4204353212282E+14
Altitude
24340024.158514
Surface area
3.4204353212282E+14
Volume
2.6164044044263E+21
Height
13249031.003417