28305438 (number)

28305438 is an even 8-digits composite number following 28305437 and preceding 28305439. In scientific notation, it is written as 2.8305438 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors. There are 7895664 positive integers (up to 28305438) that are relatively prime to 28305438.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred five thousand four hundred thirty-eight

Notation

Scientific notation 2.8305438 × 10^7
Engineering notation 2.8305438 × 10^6

Prime Factorization of 28305438

Prime Factorization 2 × 129 × 7 × 7 × 2239

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4043634
Product of the distinct prime numbers

The prime factorization of 28305438 is 2 × 129 × 7 × 7 × 2239. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 17, 53, 603, 425, 6600, 2353, 46960, 4748, 235182, 131844, 1889935, 7180601, 6687776, 90522074, 418280831, 703685032, 9778064945, 3437553694

Basic calculations (n = 28305438)

Multiplication

n×y
n×2 56610876
n×3 84916314
n×4 113221752
n×5 141527190

Division

n÷y
n÷2 14152719
n÷3 9435146
n÷3 7076359.5
n÷5 5661087.6

Exponentiation

ny
n2 801197820371844
n3 2.267825523027E+22
n4 6.4191794736859E+29
n5 1.8169768660329E+37

Nth Root

y√n
2√n 5320.2855186541
3√n 304.75906081408
4√n 72.940287349681
5√n 30.929576671077

Divisors of 28305438

1, 2, 7, 14, 49, 98, 129, 258, 903, 1806, 2239, 4478, 6321, 12642, 15673, 31346, 109711, 219422, 288831, 577662, 2021817, 4043634, 14152719, 28305438

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 -28305437
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 28305438 can be divided by 24 positive divisors. The sum of these divisors (counting 28305438) is 1, the average is 0.041666666666667.

Base conversion 28305438

Base System Value
2 Binary 1101011111110100000011110
3 Ternary 1222021001202120
4 Quaternary 1223332200132
5 Quinary 24221233223
6 Senary 2450403410
8 Octal 153764036
10 Decimal 28305438
12 Duodecimal 9590566
16 Hexadecimal 1afe81e
20 Vigesimal 8gi3bi
36 Base36 guom6

Cryptographic Hash Functions

md5 f8b396248729703e177afe590c4c27b7
sha1 9e749c98a79d4e4e14e15050d1a10be4f52a5474
sha256 bdfb77cd2128bcde96877fbd8360c7d8db2f1a2e98ac47a28908dce9897dd2b7
sha512 c4d452254906da7268cb088b64dd04436bd93e5f1b6203f3b2e17a95d5195fab50966814b07b5b0b4eb4a6a7706d336e206aa05a6b2b87a467ff0369f36da834
ripemd-160 f948fcfb3ac700ddb518e00323be1f38b73bc4f8

28305438 as geometric shapes

Circle

Radius = n
Diameter 56610876
Circumference 177848312.15488
Area 2.5170371865523E+15

Sphere

Radius = n
Volume 9.4994453370202E+22
Surface area 1.0068148746209E+16
Circumference 177848312.15488

Square

Length = n
Perimeter 113221752
Area 801197820371844
Diagonal 40029934.308511

Cube

Length = n
Surface area 4807186922231064
Volume 2.267825523027E+22
Space diagonal 49026456.746491

Equilateral Triangle

Length = n
Perimeter 84916314
Area 3.4692883294937E+14
Altitude 24513228.373245

Triangular Pyramid

Length = n
Surface area 3.4692883294937E+14
Volume 2.6726580098006E+21
Height 13343311.43617