28931969 is an odd 8-digits composite number following 28931968
and preceding 28931970 . In scientific notation, it is written as 2.8931969 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 26301780 positive integers (up to 28931969) that are relatively prime to 28931969.
28931969 has 4 divisors, whose sum is 31562160
The reverse of 28931969 is 96913982
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million nine hundred thirty-one thousand nine hundred sixty-nine
Scientific notation
2.8931969 × 10^7
Engineering notation
2.8931969 × 10^6
Prime Factorization
11 × 2630179
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28931969
Product of the distinct prime numbers
The prime factorization of 28931969 is 11 × 2630179.
Since it has a total of 2 prime factors.
9 , 5 , 29 , 97 , 897 , 690 , 8714 , 5361 , 22908 , 19249 , 594150 , 89209 , 8197394 , 3191184 , 73841544 , 7284406 , 751035893 , 371786064 , 4461237467 , 6290537767
n×2
57863938
n×3
86795907
n×4
115727876
n×5
144659845
n÷2
14465984.5
n÷3
9643989.6666667
n÷3
7232992.25
n÷5
5786393.8
n2
837058830216961
n3
2.4217760127013E+22
n4
7.0066748524419E+29
n5
2.0271689962393E+37
2 √n
5378.8445785317
3 √n
306.99124987881
4 √n
73.340606614151
5 √n
31.065303307059
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
-28931968
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 28931969 can be divided by 4 positive divisors.
The sum of these divisors (counting 28931969) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111011110000001
3
Ternary
2000102220012102
4
Quaternary
1232113132001
5
Quinary
24401310334
6
Senary
2512040145
8
Octal
156273601
10
Decimal
28931969
12
Duodecimal
9833055
16
Hexadecimal
1b97781
20
Vigesimal
90g9i9
36
Base36
h841t
md5
94c71054997e3e86ae054d966aa48e2b
sha1
11136e6286b2ae09969af2587da568390b8e495a
sha256
f2426cc854e1bf47f3984de80724d60e27d7dccf8ef7384a474da36a0da75cd5
sha512
99bc888f3eb28e9b13c91b8fc361277c8410f3b2c7d29c8c4462178ea69a7e89ef66f5ff4186590e773f13da9a7824ab377676d99a7fc1a50621773697c3fbac
ripemd-160
2df5abba523e2997d61d9209249d9f435b85efaa
Diameter
57863938
Circumference
181784922.52858
Area
2.6296978716321E+15
Volume
1.014431164019E+23
Surface area
1.0518791486528E+16
Circumference
181784922.52858
Perimeter
115727876
Area
837058830216961
Diagonal
40915982.945958
Surface area
5022352981301766
Volume
2.4217760127013E+22
Space diagonal
50111640.271008
Perimeter
86795907
Area
3.6245710571499E+14
Altitude
25055820.135504
Surface area
3.6245710571499E+14
Volume
2.8540904018267E+21
Height
13638660.981986