28931531 is an odd 8-digits composite number following 28931530
and preceding 28931532 . In scientific notation, it is written as 2.8931531 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 27855520 positive integers (up to 28931531) that are relatively prime to 28931531.
28931531 has 8 divisors, whose sum is 30013200
The reverse of 28931531 is 13513982
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million nine hundred thirty-one thousand five hundred thirty-one
Scientific notation
2.8931531 × 10^7
Engineering notation
2.8931531 × 10^6
Prime Factorization
29 × 419 × 2381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931531
Product of the distinct prime numbers
The prime factorization of 28931531 is 29 × 419 × 2381.
Since it has a total of 3 prime factors.
8 , 5 , 98 , 61 , 705 , 989 , 2508 , 4723 , 4459 , 98098 , 362554 , 756124 , 6137569 , 9403331 , 15379125 , 12670496 , 854568687 , 34658466 , 7490252716 , 9532096451
n×2
57863062
n×3
86794593
n×4
115726124
n×5
144657655
n÷2
14465765.5
n÷3
9643843.6666667
n÷3
7232882.75
n÷5
5786306.2
n2
837033486003961
n3
2.4216660248362E+22
n4
7.0062505669194E+29
n5
2.027015554706E+37
2 √n
5378.8038633139
3 √n
306.98970069463
4 √n
73.340329037398
5 √n
31.065209247196
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
-28931530
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 28931531 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931531) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111010111001011
3
Ternary
2000102212121012
4
Quaternary
1232113113023
5
Quinary
24401302111
6
Senary
2512034135
8
Octal
156272713
10
Decimal
28931531
12
Duodecimal
983294b
16
Hexadecimal
1b975cb
20
Vigesimal
90g8gb
36
Base36
h83pn
md5
c0381e061e678efdb8c8a3d38dba54da
sha1
c11de3c55ed9e2d3f2823e548f7118c003c69230
sha256
4e0372dd3a156c3a7aca9a700fa139e0868be757152af6b6c499ff9fed4e92da
sha512
e301d9c5404d667263860605b5a29de94c645728229c847241b56ec34593f9a9f068223945ca5210507c8ed398c5d28caff0213412e3c08be1c9ea0e012ee670
ripemd-160
04f192ac63e9c312058c54454585ac50aa876622
Diameter
57863062
Circumference
181782170.49341
Area
2.6296182504387E+15
Volume
1.0143850924098E+23
Surface area
1.0518473001755E+16
Circumference
181782170.49341
Perimeter
115726124
Area
837033486003961
Diagonal
40915363.520418
Surface area
5022200916023766
Volume
2.4216660248362E+22
Space diagonal
50110881.632754
Perimeter
86794593
Area
3.6244613134884E+14
Altitude
25055440.816377
Surface area
3.6244613134884E+14
Volume
2.8539607798845E+21
Height
13638454.506806