28871 is an odd 5-digits prime number following 28870
and preceding 28872 . In scientific notation, it is written as 2.8871 × 10^4.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 28870 positive integers (up to 28871) that are relatively prime to 28871.
28871 has 2 divisors, whose sum is 28872
The reverse of 28871 is 17882
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 5
Sum of Digits 26
Digital Root 8
Name
twenty-eight thousand eight hundred seventy-one
Scientific notation
2.8871 × 10^4
Engineering notation
2.8871 × 10^3
Prime Factorization
28871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28871
Product of the distinct prime numbers
The prime factorization of 28871 is 28871.
Since it has a total of 1 prime factors.
1 , 5 , 83 , 57 , 325 , 403 , 3338 , 2324 , 53864 , 52534 , 509181 , 461339 , 9184882 , 2620961 , 42024559 , 70074443 , 112288295 , 823373972 , 7308695210 , 9712326867
n×2
57742
n×3
86613
n×4
115484
n×5
144355
n÷2
14435.5
n÷3
9623.6666666667
n÷3
7217.75
n÷5
5774.2
n2
833534641
n3
24064978620311
n4
694779997746998881
n5
2.0058993314954E+22
2 √n
169.9146844743
3 √n
30.677545499715
4 √n
13.035132698761
5 √n
7.7999598170181
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
169.91762710208
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999307287337
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28871 can be divided by 2 positive divisors.
The sum of these divisors (counting 28871) is 28872, the average is 14436.
Base
System
Value
2
Binary
111000011000111
3
Ternary
1110121022
4
Quaternary
13003013
5
Quinary
1410441
6
Senary
341355
8
Octal
70307
10
Decimal
28871
12
Duodecimal
1485b
16
Hexadecimal
70c7
20
Vigesimal
3c3b
36
Base36
m9z
md5
b9630d51806c5bf8ab0cef3fd97d414f
sha1
78adf692ff967af5cc1c1e38528b1a554ed381e6
sha256
a33751dc2c5e06264ed3b5373e392f16b4e5262b2a6a72726e3cdb8c9d598f85
sha512
93735b7641e5de9c216f615e6c7fbf499489e05c32d8674c03b50ac7bf3e3103b7e47d1099c5dc80cc81e377374882f39d418a248428d354ea2b1fc66c38ba04
ripemd-160
a583ee27d7a8a3e79c2bbb5cf2930334a1d59577
Diameter
57742
Circumference
181401.84300358
Area
2618626304.6782
Volume
1.0080314672315E+14
Surface area
10474505218.713
Circumference
181401.84300358
Perimeter
115484
Area
833534641
Diagonal
40829.759759274
Surface area
5001207846
Volume
24064978620311
Space diagonal
50006.038865321
Perimeter
86613
Area
360931087.02017
Altitude
25003.019432661
Surface area
360931087.02017
Volume
2836084928588.5
Height
13609.919919758