28109729 is an odd 8-digits composite number following 28109728
and preceding 28109730 . In scientific notation, it is written as 2.8109729 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 27140400 positive integers (up to 28109729) that are relatively prime to 28109729.
28109729 has 4 divisors, whose sum is 29079060
The reverse of 28109729 is 92790182
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million one hundred nine thousand seven hundred twenty-nine
Scientific notation
2.8109729 × 10^7
Engineering notation
2.8109729 × 10^6
Prime Factorization
29 × 969301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28109729
Product of the distinct prime numbers
The prime factorization of 28109729 is 29 × 969301.
Since it has a total of 2 prime factors.
8 , 4 , 31 , 54 , 206 , 283 , 9515 , 2813 , 49388 , 8391 , 956946 , 571029 , 1213571 , 372167 , 40853793 , 24179396 , 635671779 , 700703754 , 2353483471 , 8119417440
n×2
56219458
n×3
84329187
n×4
112438916
n×5
140548645
n÷2
14054864.5
n÷3
9369909.6666667
n÷3
7027432.25
n÷5
5621945.8
n2
790156864453441
n3
2.2211095327276E+22
n4
6.2434787044289E+29
n5
1.7550249439877E+37
2 √n
5301.8608997219
3 √n
304.05504903953
4 √n
72.813878482896
5 √n
30.886687333171
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
-28109728
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 28109729 can be divided by 4 positive divisors.
The sum of these divisors (counting 28109729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011001110101110100001
3
Ternary
1221220010022002
4
Quaternary
1223032232201
5
Quinary
24144002404
6
Senary
2442253345
8
Octal
153165641
10
Decimal
28109729
12
Duodecimal
94b7255
16
Hexadecimal
1aceba1
20
Vigesimal
8fde69
36
Base36
gqhlt
md5
ad9e5399653b50909291cd1db227faf2
sha1
5b6f45f84fd55597348f2dfecf7a987b8f792120
sha256
311190b7cd6a1e4b2af30ceb7c2128ca922e2d5e4a3981058851ee978e2ea324
sha512
8c9d56816c10c51a0fd771bfb7feecde489058f1e1f5b8397062a4dcb5d9f9e9f01be52b7d81e5a6e83c37380f229fa27004335092b91e22e2a3fd8742b3ec34
ripemd-160
a9a61f4437b60983f69d491fa2d0d558cc5478e9
Diameter
56219458
Circumference
176618636.2416
Area
2.4823510005505E+15
Volume
9.303761854447E+22
Surface area
9.9294040022019E+15
Circumference
176618636.2416
Perimeter
112438916
Area
790156864453441
Diagonal
39753159.986432
Surface area
4740941186720646
Volume
2.2211095327276E+22
Space diagonal
48687478.814992
Perimeter
84329187
Area
3.4214795879567E+14
Altitude
24343739.407496
Surface area
3.4214795879567E+14
Volume
2.6176026872496E+21
Height
13251053.328811