28931471 is an odd 8-digits composite number following 28931470
and preceding 28931472 . In scientific notation, it is written as 2.8931471 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 26998488 positive integers (up to 28931471) that are relatively prime to 28931471.
28931471 has 8 divisors, whose sum is 30910080
The reverse of 28931471 is 17413982
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million nine hundred thirty-one thousand four hundred seventy-one
Scientific notation
2.8931471 × 10^7
Engineering notation
2.8931471 × 10^6
Prime Factorization
19 × 67 × 22727
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931471
Product of the distinct prime numbers
The prime factorization of 28931471 is 19 × 67 × 22727.
Since it has a total of 3 prime factors.
2 , 2 , 99 , 88 , 214 , 357 , 1316 , 5278 , 496 , 91694 , 932898 , 873063 , 3770502 , 6508474 , 90633553 , 81023784 , 81333326 , 84016411 , 1219144573 , 146532726
n×2
57862942
n×3
86794413
n×4
115725884
n×5
144657355
n÷2
14465735.5
n÷3
9643823.6666667
n÷3
7232867.75
n÷5
5786294.2
n2
837030014223841
n3
2.4216509582647E+22
n4
7.0061924471156E+29
n5
2.0269945360415E+37
2 √n
5378.7982858627
3 √n
306.9894884764
4 √n
73.34029101294
5 √n
31.065196362194
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
-28931470
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 28931471 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931471) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111010110001111
3
Ternary
2000102212111222
4
Quaternary
1232113112033
5
Quinary
24401301341
6
Senary
2512033555
8
Octal
156272617
10
Decimal
28931471
12
Duodecimal
98328bb
16
Hexadecimal
1b9758f
20
Vigesimal
90g8db
36
Base36
h83nz
md5
29bb0508a6878d2b7a244e1a6a128a3f
sha1
a9f8e47e1e2a1e7e0db2a736f4355a7467d2f04d
sha256
3bd76cb1c2b464237dae7a7493d77954d2baa1aed21f9a659224c0e23118ee93
sha512
8db33d002501f483df87becadca0818cf797fdf8a71720758fc2041e4ae24c72b77640bc383d47c4130f32478856c15d4f01802a3a21ce14bcf0dbb1d72a6259
ripemd-160
49a58262fa5388a50baf4530c680229211a23b0e
Diameter
57862942
Circumference
181781793.50229
Area
2.6296073435198E+15
Volume
1.0143787813391E+23
Surface area
1.0518429374079E+16
Circumference
181781793.50229
Perimeter
115725884
Area
837030014223841
Diagonal
40915278.667604
Surface area
5022180085343046
Volume
2.4216509582647E+22
Space diagonal
50110777.709706
Perimeter
86794413
Area
3.6244462802395E+14
Altitude
25055388.854853
Surface area
3.6244462802395E+14
Volume
2.8539430237597E+21
Height
13638426.222535