28904 is an even 5-digits composite number following 28903
and preceding 28905 . In scientific notation, it is written as 2.8904 × 10^4.
The sum of its digits is 23. It has a total of 4 prime factors and 8 positive divisors.
There are 14448 positive integers (up to 28904) that are relatively prime to 28904.
28904 has 8 divisors, whose sum is 54210
The reverse of 28904 is 40982
Previous prime number is 2
Is Prime? no
Number parity even
Number length 5
Sum of Digits 23
Digital Root 5
Name
twenty-eight thousand nine hundred four
Scientific notation
2.8904 × 10^4
Engineering notation
2.8904 × 10^3
Prime Factorization
2 × 2 × 2 × 3613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7226
Product of the distinct prime numbers
The prime factorization of 28904 is 2 × 2 × 2 × 3613.
Since it has a total of 4 prime factors.
9 , 6 , 85 , 60 , 818 , 673 , 5448 , 7302 , 33145 , 57983 , 396780 , 180724 , 3381072 , 4588096 , 89934080 , 36117824 , 881697825 , 121233901 , 2149198086 , 9140393171
n×2
57808
n×3
86712
n×4
115616
n×5
144520
n÷2
14452
n÷3
9634.6666666667
n÷3
7226
n÷5
5780.8
n2
835441216
n3
24147592907264
n4
697962025391558656
n5
2.0173894381918E+22
2 √n
170.01176429883
3 √n
30.689229352396
4 √n
13.038855942867
5 √n
7.8017420973017
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28904 can be divided by 8 positive divisors.
The sum of these divisors (counting 28904) is 1, the average is 0.125.
Base
System
Value
2
Binary
111000011101000
3
Ternary
1110122112
4
Quaternary
13003220
5
Quinary
1411104
6
Senary
341452
8
Octal
70350
10
Decimal
28904
12
Duodecimal
14888
16
Hexadecimal
70e8
20
Vigesimal
3c54
36
Base36
maw
md5
0ebd0b8b51eb0d0062065a7657486c8e
sha1
86623989e824aea4132e6497fd20af26a767e93a
sha256
f303f97b5d00c9fac9be7f477b069f784c98129dec164f1f92c4fd34ebf4d4a8
sha512
6d3d4b7f59589c4e96534f7859562757af8f10e5bac88ff8539dc4bd27ff4a5d814c227397aa5409f93e751ef774f629c795a140cb4a2afd4b4323ec9dbedf38
ripemd-160
2f9c37687a70ff28e87601c143fd714a4d30cc0b
Diameter
57808
Circumference
181609.18811872
Area
2624615986.6917
Volume
1.0114920063912E+14
Surface area
10498463946.767
Circumference
181609.18811872
Perimeter
115616
Area
835441216
Diagonal
40876.428806832
Surface area
5012647296
Volume
24147592907264
Space diagonal
50063.196541971
Perimeter
86712
Area
361756658.21228
Altitude
25031.598270985
Surface area
361756658.21228
Volume
2845821115676.4
Height
13625.476268944