28931521 is an odd 8-digits composite number following 28931520
and preceding 28931522 . In scientific notation, it is written as 2.8931521 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 28075248 positive integers (up to 28931521) that are relatively prime to 28931521.
28931521 has 8 divisors, whose sum is 29792000
The reverse of 28931521 is 12513982
Previous prime number is 1567
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million nine hundred thirty-one thousand five hundred twenty-one
Scientific notation
2.8931521 × 10^7
Engineering notation
2.8931521 × 10^6
Prime Factorization
37 × 1567 × 499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28931521
Product of the distinct prime numbers
The prime factorization of 28931521 is 37 × 1567 × 499.
Since it has a total of 3 prime factors.
10 , 6 , 38 , 34 , 866 , 920 , 7728 , 6385 , 85072 , 13265 , 887470 , 621677 , 2078674 , 5088985 , 99511786 , 72990087 , 324774597 , 25296247 , 8240126563 , 6189600951
n×2
57863042
n×3
86794563
n×4
115726084
n×5
144657605
n÷2
14465760.5
n÷3
9643840.3333333
n÷3
7232880.25
n÷5
5786304.2
n2
837032907373441
n3
2.4216635137366E+22
n4
7.0062408802604E+29
n5
2.0270120515831E+37
2 √n
5378.8029337391
3 √n
306.98966532495
4 √n
73.340322699993
5 √n
31.065207099697
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
-28931520
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 28931521 can be divided by 8 positive divisors.
The sum of these divisors (counting 28931521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010111010111000001
3
Ternary
2000102212120211
4
Quaternary
1232113113001
5
Quinary
24401302041
6
Senary
2512034121
8
Octal
156272701
10
Decimal
28931521
12
Duodecimal
9832941
16
Hexadecimal
1b975c1
20
Vigesimal
90g8g1
36
Base36
h83pd
md5
abcfc4131aa32b2330a91ab3aeea7ec0
sha1
ceb5e714866fbbcc11b6f3639faea467d6ee596b
sha256
9c06441a28d85825dffc0fea2f0681c55ed4c7806ba50081c9febde0e2cb49ff
sha512
df66dc24e28867c2b95534af66973f73de14bb1cfe8db587e7f544985ec91f2a434dea387a9bdfc4b83ad03f86f1d12c101abf9bced06fd1e8936864ca56784a
ripemd-160
2fafa77edd031ecbcc072f40425947ec434cff08
Diameter
57863042
Circumference
181782107.66156
Area
2.6296164326173E+15
Volume
1.0143840405628E+23
Surface area
1.0518465730469E+16
Circumference
181782107.66156
Perimeter
115726084
Area
837032907373441
Diagonal
40915349.378282
Surface area
5022197444240646
Volume
2.4216635137366E+22
Space diagonal
50110864.312246
Perimeter
86794563
Area
3.6244588079447E+14
Altitude
25055432.156123
Surface area
3.6244588079447E+14
Volume
2.8539578205253E+21
Height
13638449.792761