28931521 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand five hundred twenty-one

Notation

Scientific notation 2.8931521 × 10^7
Engineering notation 2.8931521 × 10^6

Prime Factorization of 28931521

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.

Most popular turbo-numbers

Basic calculations (n = 28931521)

Multiplication

n×y
n×2 57863042
n×3 86794563
n×4 115726084
n×5 144657605

Division

n÷y
n÷2 14465760.5
n÷3 9643840.3333333
n÷3 7232880.25
n÷5 5786304.2

Exponentiation

ny
n2 837032907373441
n3 2.4216635137366E+22
n4 7.0062408802604E+29
n5 2.0270120515831E+37

Nth Root

y√n
2√n 5378.8029337391
3√n 306.98966532495
4√n 73.340322699993
5√n 31.065207099697

Divisors of 28931521

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 conversion 28931521

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

Cryptographic Hash Functions

md5 abcfc4131aa32b2330a91ab3aeea7ec0
sha1 ceb5e714866fbbcc11b6f3639faea467d6ee596b
sha256 9c06441a28d85825dffc0fea2f0681c55ed4c7806ba50081c9febde0e2cb49ff
sha512 df66dc24e28867c2b95534af66973f73de14bb1cfe8db587e7f544985ec91f2a434dea387a9bdfc4b83ad03f86f1d12c101abf9bced06fd1e8936864ca56784a
ripemd-160 2fafa77edd031ecbcc072f40425947ec434cff08

28931521 as geometric shapes

Circle

Radius = n
Diameter 57863042
Circumference 181782107.66156
Area 2.6296164326173E+15

Sphere

Radius = n
Volume 1.0143840405628E+23
Surface area 1.0518465730469E+16
Circumference 181782107.66156

Square

Length = n
Perimeter 115726084
Area 837032907373441
Diagonal 40915349.378282

Cube

Length = n
Surface area 5022197444240646
Volume 2.4216635137366E+22
Space diagonal 50110864.312246

Equilateral Triangle

Length = n
Perimeter 86794563
Area 3.6244588079447E+14
Altitude 25055432.156123

Triangular Pyramid

Length = n
Surface area 3.6244588079447E+14
Volume 2.8539578205253E+21
Height 13638449.792761