28931445 (number)

28931445 is an odd 8-digits composite number following 28931444 and preceding 28931446. In scientific notation, it is written as 2.8931445 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 15050880 positive integers (up to 28931445) that are relatively prime to 28931445.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931445 × 10^7
Engineering notation 2.8931445 × 10^6

Prime Factorization of 28931445

Prime Factorization 15 × 3 × 3 × 41 × 5227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9643815
Product of the distinct prime numbers

The prime factorization of 28931445 is 15 × 3 × 3 × 41 × 5227. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 11, 25, 269, 714, 6195, 3729, 8585, 24781, 997735, 43848, 4501999, 9989020, 43015088, 72787472, 291330695, 162155743, 1023694545, 910303793

Basic calculations (n = 28931445)

Multiplication

n×y
n×2 57862890
n×3 86794335
n×4 115725780
n×5 144657225

Division

n÷y
n÷2 14465722.5
n÷3 9643815
n÷3 7232861.25
n÷5 5786289

Exponentiation

ny
n2 837028509788025
n3 2.4216444294364E+22
n4 7.0061672619796E+29
n5 2.0269854280076E+37

Nth Root

y√n
2√n 5378.7958689655
3√n 306.98939651508
4√n 73.340274535657
5√n 31.065190778687

Divisors of 28931445

1, 3, 9, 15, 41, 45, 123, 135, 369, 615, 1845, 5227, 5535, 15681, 47043, 78405, 214307, 235215, 642921, 705645, 1928763, 3214605, 9643815, 28931445

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931444
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931445 can be divided by 24 positive divisors. The sum of these divisors (counting 28931445) is 1, the average is 0.041666666666667.

Base conversion 28931445

Base System Value
2 Binary 1101110010111010101110101
3 Ternary 2000102212111000
4 Quaternary 1232113111311
5 Quinary 24401301240
6 Senary 2512033513
8 Octal 156272565
10 Decimal 28931445
12 Duodecimal 9832899
16 Hexadecimal 1b97575
20 Vigesimal 90g8c5
36 Base36 h83n9

Cryptographic Hash Functions

md5 40b5b58a5a722863cec0bc04ffe97835
sha1 2ba698773d538d2e0b56463144eb1e8698b61759
sha256 7f97ec5a94b544b0101885e2a073f26ca9f12113ef1ec4b06c283b2e77566a1b
sha512 44f82ee59e36667435bc9e76a9efe54e35f3c6cea0ab12a1b161e2e354fa567583bd11513e8e915bfa72d051a50c4fc0971b748c044e9f44b27ca23afdc8916c
ripemd-160 0d0e3e62da42d16b4856bea344363c9c33518a80

28931445 as geometric shapes

Circle

Radius = n
Diameter 57862890
Circumference 181781630.13947
Area 2.6296026171953E+15

Sphere

Radius = n
Volume 1.0143760465499E+23
Surface area 1.0518410468781E+16
Circumference 181781630.13947

Square

Length = n
Perimeter 115725780
Area 837028509788025
Diagonal 40915241.898051

Cube

Length = n
Surface area 5022171058728150
Volume 2.4216444294364E+22
Space diagonal 50110732.676385

Equilateral Triangle

Length = n
Perimeter 86794335
Area 3.6244397658413E+14
Altitude 25055366.338192

Triangular Pyramid

Length = n
Surface area 3.6244397658413E+14
Volume 2.8539353294619E+21
Height 13638413.966017