28931729 is an odd 8-digits composite number following 28931728
and preceding 28931730 . In scientific notation, it is written as 2.8931729 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 28675584 positive integers (up to 28931729) that are relatively prime to 28931729.
28931729 has 4 divisors, whose sum is 29187876
The reverse of 28931729 is 92713982
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million nine hundred thirty-one thousand seven hundred twenty-nine
Scientific notation
2.8931729 × 10^7
Engineering notation
2.8931729 × 10^6
Prime Factorization
113 × 256033
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28931729
Product of the distinct prime numbers
The prime factorization of 28931729 is 113 × 256033.
Since it has a total of 2 prime factors.
3 , 10 , 8 , 97 , 115 , 366 , 8187 , 429 , 54884 , 30122 , 450493 , 871222 , 8505588 , 6165981 , 66566854 , 4904587 , 107331384 , 277795463 , 6584850778 , 6856378426
n×2
57863458
n×3
86795187
n×4
115726916
n×5
144658645
n÷2
14465864.5
n÷3
9643909.6666667
n÷3
7232932.25
n÷5
5786345.8
n2
837044942929441
n3
2.4217157449655E+22
n4
7.0064423648375E+29
n5
2.027084917536E+37
2 √n
5378.8222688615
3 √n
306.99040101271
4 √n
73.340454517691
5 √n
31.065251767549
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
-28931728
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 28931729 can be divided by 4 positive divisors.
The sum of these divisors (counting 28931729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111011010010001
3
Ternary
2000102212212112
4
Quaternary
1232113122101
5
Quinary
24401303404
6
Senary
2512035105
8
Octal
156273221
10
Decimal
28931729
12
Duodecimal
9832a95
16
Hexadecimal
1b97691
20
Vigesimal
90g969
36
Base36
h83v5
md5
b248c47756ffbc792efe8227add309d5
sha1
80cb5b944abfa1085571debeed226fa742f59955
sha256
a4bed742e695654bfbc35fdf65d8c272223ff28a3a4a40bc7b7e8e8c6db446b5
sha512
6090a0329112b9c11811263fb6fb32328ad3c9305ab61898bb4c476158966945394db9cbb6d9d3c93d8f423be725c3ab492867bdfdf654e884049e1a3d2db2ed
ripemd-160
01ab2709132e6691f23504b50e14e246f67d3887
Diameter
57863458
Circumference
181783414.5641
Area
2.6296542434316E+15
Volume
1.0144059191288E+23
Surface area
1.0518616973726E+16
Circumference
181783414.5641
Perimeter
115726916
Area
837044942929441
Diagonal
40915643.534703
Surface area
5022269657576646
Volume
2.4217157449655E+22
Space diagonal
50111224.578814
Perimeter
86795187
Area
3.624510923431E+14
Altitude
25055612.289407
Surface area
3.624510923431E+14
Volume
2.8540193756189E+21
Height
13638547.844901