28931729 (number)

28931729 is an odd 8-digits composite number following 28931728 and preceding 28931730. In scientific notation, it is written as 2.8931729 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 28675584 positive integers (up to 28931729) that are relatively prime to 28931729.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931729 × 10^7
Engineering notation 2.8931729 × 10^6

Prime Factorization of 28931729

Prime Factorization 113 × 256033

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28931729
Product of the distinct prime numbers

The prime factorization of 28931729 is 113 × 256033. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931729)

Multiplication

n×y
n×2 57863458
n×3 86795187
n×4 115726916
n×5 144658645

Division

n÷y
n÷2 14465864.5
n÷3 9643909.6666667
n÷3 7232932.25
n÷5 5786345.8

Exponentiation

ny
n2 837044942929441
n3 2.4217157449655E+22
n4 7.0064423648375E+29
n5 2.027084917536E+37

Nth Root

y√n
2√n 5378.8222688615
3√n 306.99040101271
4√n 73.340454517691
5√n 31.065251767549

Divisors of 28931729

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931729 can be divided by 4 positive divisors. The sum of these divisors (counting 28931729) is 1, the average is 0.25.

Base conversion 28931729

Base System Value
2 Binary 1101110010111011010010001
3 Ternary 2000102212212112
4 Quaternary 1232113122101
5 Quinary 24401303404
6 Senary 2512035105
8 Octal 156273221
10 Decimal 28931729
12 Duodecimal 9832a95
16 Hexadecimal 1b97691
20 Vigesimal 90g969
36 Base36 h83v5

Cryptographic Hash Functions

md5 b248c47756ffbc792efe8227add309d5
sha1 80cb5b944abfa1085571debeed226fa742f59955
sha256 a4bed742e695654bfbc35fdf65d8c272223ff28a3a4a40bc7b7e8e8c6db446b5
sha512 6090a0329112b9c11811263fb6fb32328ad3c9305ab61898bb4c476158966945394db9cbb6d9d3c93d8f423be725c3ab492867bdfdf654e884049e1a3d2db2ed
ripemd-160 01ab2709132e6691f23504b50e14e246f67d3887

28931729 as geometric shapes

Circle

Radius = n
Diameter 57863458
Circumference 181783414.5641
Area 2.6296542434316E+15

Sphere

Radius = n
Volume 1.0144059191288E+23
Surface area 1.0518616973726E+16
Circumference 181783414.5641

Square

Length = n
Perimeter 115726916
Area 837044942929441
Diagonal 40915643.534703

Cube

Length = n
Surface area 5022269657576646
Volume 2.4217157449655E+22
Space diagonal 50111224.578814

Equilateral Triangle

Length = n
Perimeter 86795187
Area 3.624510923431E+14
Altitude 25055612.289407

Triangular Pyramid

Length = n
Surface area 3.624510923431E+14
Volume 2.8540193756189E+21
Height 13638547.844901