28720265 (number)

28720265 is an odd 8-digits composite number following 28720264 and preceding 28720266. In scientific notation, it is written as 2.8720265 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 19595520 positive integers (up to 28720265) that are relatively prime to 28720265.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred twenty thousand two hundred sixty-five

Notation

Scientific notation 2.8720265 × 10^7
Engineering notation 2.8720265 × 10^6

Prime Factorization of 28720265

Prime Factorization 5 × 7 × 211 × 3889

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28720265
Product of the distinct prime numbers

The prime factorization of 28720265 is 5 × 7 × 211 × 3889. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 20, 40, 88, 780, 5070, 3273, 85920, 43779, 222739, 551521, 667724, 6459634, 91258627, 51919843, 863563534, 29353335, 2834946283, 8565006889

Basic calculations (n = 28720265)

Multiplication

n×y
n×2 57440530
n×3 86160795
n×4 114881060
n×5 143601325

Division

n÷y
n÷2 14360132.5
n÷3 9573421.6666667
n÷3 7180066.25
n÷5 5744053

Exponentiation

ny
n2 824853621670225
n3 2.3690014600579E+22
n4 6.8038349718249E+29
n5 1.9540794340708E+37

Nth Root

y√n
2√n 5359.1291270131
3√n 306.2406333384
4√n 73.206073020024
5√n 31.019706802699

Divisors of 28720265

1, 5, 7, 35, 211, 1055, 1477, 3889, 7385, 19445, 27223, 136115, 820579, 4102895, 5744053, 28720265

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28720264
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28720265 can be divided by 16 positive divisors. The sum of these divisors (counting 28720265) is 1, the average is 0.0625.

Base conversion 28720265

Base System Value
2 Binary 1101101100011110010001001
3 Ternary 2000001010210112
4 Quaternary 1231203302021
5 Quinary 24323022030
6 Senary 2503324105
8 Octal 155436211
10 Decimal 28720265
12 Duodecimal 9750635
16 Hexadecimal 1b63c89
20 Vigesimal 8ja0d5
36 Base36 h3kp5

Cryptographic Hash Functions

md5 355b973b7e0e18a66cf70210af1da16a
sha1 1e8a3ec7e8c15e581c422cbfe44c47edb7cb1cc5
sha256 be3e22f50ecf53bc0ea4c2908c6c3ee98cde3f3a66fa541180920b84f8e6f66d
sha512 2b445e1b79dbd9a7a7652e1b92b05931c4d483a468ff69f85115d10a7ad6d00e0b99bcdc9d26dc636fbe28952e51426e5c4b7902093afc77d26724732f779bb4
ripemd-160 7dd41f2261d1533bfdad5985d2a1f634f33845ed

28720265 as geometric shapes

Circle

Radius = n
Diameter 57440530
Circumference 180454747.0663
Area 2.5913540781261E+15

Sphere

Radius = n
Volume 9.923250111015E+22
Surface area 1.0365416312504E+16
Circumference 180454747.0663

Square

Length = n
Perimeter 114881060
Area 824853621670225
Diagonal 40616588.277949

Cube

Length = n
Surface area 4949121730021350
Volume 2.3690014600579E+22
Space diagonal 49744958.186842

Equilateral Triangle

Length = n
Perimeter 86160795
Area 3.5717209538501E+14
Altitude 24872479.093421

Triangular Pyramid

Length = n
Surface area 3.5717209538501E+14
Volume 2.7918949950796E+21
Height 13538862.759316