28291809 (number)

28291809 is an odd 8-digits composite number following 28291808 and preceding 28291810. In scientific notation, it is written as 2.8291809 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 14437440 positive integers (up to 28291809) that are relatively prime to 28291809.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred ninety-one thousand eight hundred nine

Notation

Scientific notation 2.8291809 × 10^7
Engineering notation 2.8291809 × 10^6

Prime Factorization of 28291809

Prime Factorization 13 × 3 × 7 × 31 × 3343

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28291809
Product of the distinct prime numbers

The prime factorization of 28291809 is 13 × 3 × 7 × 31 × 3343. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 2, 21, 8, 104, 544, 8261, 4735, 57478, 99018, 809925, 525851, 1141981, 1625899, 74733740, 98294433, 212987636, 993278178, 1384686103, 734883132

Basic calculations (n = 28291809)

Multiplication

n×y
n×2 56583618
n×3 84875427
n×4 113167236
n×5 141459045

Division

n÷y
n÷2 14145904.5
n÷3 9430603
n÷3 7072952.25
n÷5 5658361.8

Exponentiation

ny
n2 800426456492481
n3 2.2645512425632E+22
n4 6.4068251225311E+29
n5 1.8126067266305E+37

Nth Root

y√n
2√n 5319.0045121244
3√n 304.7101393776
4√n 72.931505620852
5√n 30.926597593968

Divisors of 28291809

1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 3343, 8463, 10029, 23401, 43459, 70203, 103633, 130377, 304213, 310899, 725431, 912639, 1347229, 2176293, 4041687, 9430603, 28291809

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28291808
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28291809 can be divided by 32 positive divisors. The sum of these divisors (counting 28291809) is 1, the average is 0.03125.

Base conversion 28291809

Base System Value
2 Binary 1101011111011001011100001
3 Ternary 1222020101001210
4 Quaternary 1223323023201
5 Quinary 24220314214
6 Senary 2450220333
8 Octal 153731341
10 Decimal 28291809
12 Duodecimal 95846a9
16 Hexadecimal 1afb2e1
20 Vigesimal 8gg9a9
36 Base36 gue3l

Cryptographic Hash Functions

md5 c51672802d99dd160ca1bf47adba7782
sha1 554d1a49f24f050236febc7d47a1c7fd1da54308
sha256 9d2afcd4f85be77afa028c0f43b93587b521bd6b10cbfdff1754f3ac6841e159
sha512 c718d61c60f4f7db3dd1102d85fd263f4ad928b1b98a05c724c29e8b75cc740f6e3d6552ed8e853d496a7529a1b233888e0b7c0b125ebaa0ea771bb5d0c10fbc
ripemd-160 72261e27cd953d074ee7a7754a257f8ddc217c83

28291809 as geometric shapes

Circle

Radius = n
Diameter 56583618
Circumference 177762678.62233
Area 2.5146138754557E+15

Sphere

Radius = n
Volume 9.4857300630856E+22
Surface area 1.0058455501823E+16
Circumference 177762678.62233

Square

Length = n
Perimeter 113167236
Area 800426456492481
Diagonal 40010659.991869

Cube

Length = n
Surface area 4802558738954886
Volume 2.2645512425632E+22
Space diagonal 49002850.626034

Equilateral Triangle

Length = n
Perimeter 84875427
Area 3.4659482259182E+14
Altitude 24501425.313017

Triangular Pyramid

Length = n
Surface area 3.4659482259182E+14
Volume 2.6687992332681E+21
Height 13336886.663956