28931471 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand four hundred seventy-one

Notation

Scientific notation 2.8931471 × 10^7
Engineering notation 2.8931471 × 10^6

Prime Factorization of 28931471

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.

Most popular turbo-numbers

Basic calculations (n = 28931471)

Multiplication

n×y
n×2 57862942
n×3 86794413
n×4 115725884
n×5 144657355

Division

n÷y
n÷2 14465735.5
n÷3 9643823.6666667
n÷3 7232867.75
n÷5 5786294.2

Exponentiation

ny
n2 837030014223841
n3 2.4216509582647E+22
n4 7.0061924471156E+29
n5 2.0269945360415E+37

Nth Root

y√n
2√n 5378.7982858627
3√n 306.9894884764
4√n 73.34029101294
5√n 31.065196362194

Divisors of 28931471

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 conversion 28931471

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

Cryptographic Hash Functions

md5 29bb0508a6878d2b7a244e1a6a128a3f
sha1 a9f8e47e1e2a1e7e0db2a736f4355a7467d2f04d
sha256 3bd76cb1c2b464237dae7a7493d77954d2baa1aed21f9a659224c0e23118ee93
sha512 8db33d002501f483df87becadca0818cf797fdf8a71720758fc2041e4ae24c72b77640bc383d47c4130f32478856c15d4f01802a3a21ce14bcf0dbb1d72a6259
ripemd-160 49a58262fa5388a50baf4530c680229211a23b0e

28931471 as geometric shapes

Circle

Radius = n
Diameter 57862942
Circumference 181781793.50229
Area 2.6296073435198E+15

Sphere

Radius = n
Volume 1.0143787813391E+23
Surface area 1.0518429374079E+16
Circumference 181781793.50229

Square

Length = n
Perimeter 115725884
Area 837030014223841
Diagonal 40915278.667604

Cube

Length = n
Surface area 5022180085343046
Volume 2.4216509582647E+22
Space diagonal 50110777.709706

Equilateral Triangle

Length = n
Perimeter 86794413
Area 3.6244462802395E+14
Altitude 25055388.854853

Triangular Pyramid

Length = n
Surface area 3.6244462802395E+14
Volume 2.8539430237597E+21
Height 13638426.222535