28931531 (number)

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.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931531 × 10^7
Engineering notation 2.8931531 × 10^6

Prime Factorization of 28931531

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.

Most popular turbo-numbers

Basic calculations (n = 28931531)

Multiplication

n×y
n×2 57863062
n×3 86794593
n×4 115726124
n×5 144657655

Division

n÷y
n÷2 14465765.5
n÷3 9643843.6666667
n÷3 7232882.75
n÷5 5786306.2

Exponentiation

ny
n2 837033486003961
n3 2.4216660248362E+22
n4 7.0062505669194E+29
n5 2.027015554706E+37

Nth Root

y√n
2√n 5378.8038633139
3√n 306.98970069463
4√n 73.340329037398
5√n 31.065209247196

Divisors of 28931531

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 conversion 28931531

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

Cryptographic Hash Functions

md5 c0381e061e678efdb8c8a3d38dba54da
sha1 c11de3c55ed9e2d3f2823e548f7118c003c69230
sha256 4e0372dd3a156c3a7aca9a700fa139e0868be757152af6b6c499ff9fed4e92da
sha512 e301d9c5404d667263860605b5a29de94c645728229c847241b56ec34593f9a9f068223945ca5210507c8ed398c5d28caff0213412e3c08be1c9ea0e012ee670
ripemd-160 04f192ac63e9c312058c54454585ac50aa876622

28931531 as geometric shapes

Circle

Radius = n
Diameter 57863062
Circumference 181782170.49341
Area 2.6296182504387E+15

Sphere

Radius = n
Volume 1.0143850924098E+23
Surface area 1.0518473001755E+16
Circumference 181782170.49341

Square

Length = n
Perimeter 115726124
Area 837033486003961
Diagonal 40915363.520418

Cube

Length = n
Surface area 5022200916023766
Volume 2.4216660248362E+22
Space diagonal 50110881.632754

Equilateral Triangle

Length = n
Perimeter 86794593
Area 3.6244613134884E+14
Altitude 25055440.816377

Triangular Pyramid

Length = n
Surface area 3.6244613134884E+14
Volume 2.8539607798845E+21
Height 13638454.506806