28131718 (number)

28131718 is an even 8-digits composite number following 28131717 and preceding 28131719. In scientific notation, it is written as 2.8131718 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 13547520 positive integers (up to 28131718) that are relatively prime to 28131718.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8131718 × 10^7
Engineering notation 2.8131718 × 10^6

Prime Factorization of 28131718

Prime Factorization 2 × 43 × 73 × 4481

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28131718
Product of the distinct prime numbers

The prime factorization of 28131718 is 2 × 43 × 73 × 4481. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 8, 100, 7, 432, 683, 6082, 6795, 77886, 93890, 864034, 20053, 3131984, 3807127, 18999024, 40782206, 105048533, 442320330, 6244690855, 3940284157

Basic calculations (n = 28131718)

Multiplication

n×y
n×2 56263436
n×3 84395154
n×4 112526872
n×5 140658590

Division

n÷y
n÷2 14065859
n÷3 9377239.3333333
n÷3 7032929.5
n÷5 5626343.6

Exponentiation

ny
n2 791393557631524
n3 2.2263260390307E+22
n4 6.2630376306068E+29
n5 1.7619000844762E+37

Nth Root

y√n
2√n 5303.9342001952
3√n 304.13431132244
4√n 72.828114078254
5√n 30.891518080236

Divisors of 28131718

1, 2, 43, 73, 86, 146, 3139, 4481, 6278, 8962, 192683, 327113, 385366, 654226, 14065859, 28131718

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 -28131717
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 28131718 can be divided by 16 positive divisors. The sum of these divisors (counting 28131718) is 1, the average is 0.0625.

Base conversion 28131718

Base System Value
2 Binary 1101011010100000110000110
3 Ternary 1221221020110111
4 Quaternary 1223110012012
5 Quinary 24200203333
6 Senary 2442543234
8 Octal 153240606
10 Decimal 28131718
12 Duodecimal 9507b1a
16 Hexadecimal 1ad4186
20 Vigesimal 8fg95i
36 Base36 gqykm

Cryptographic Hash Functions

md5 908e6c800f6b9fb53cb5e98fc78b74a3
sha1 1c9d487bb8b01990b3eff57bdabc746b8155d364
sha256 7d5b69f0c12ac8db4e71248a5c93a7ec4dd20092355da48e0cd7c3a06fcf7ecd
sha512 43987576b6de7085775aaef3b2796908092a55af49eefb2b567b33d24505753c50f50e89009136ce54543dba846319e552cf9ba79bac0f3d317db954a8b184ef
ripemd-160 c5c29eb9d82372485e423a4ec656a6dc4d1e9570

28131718 as geometric shapes

Circle

Radius = n
Diameter 56263436
Circumference 176756797.20332
Area 2.4862361867535E+15

Sphere

Radius = n
Volume 9.3256127049526E+22
Surface area 9.9449447470139E+15
Circumference 176756797.20332

Square

Length = n
Perimeter 112526872
Area 791393557631524
Diagonal 39784257.128455

Cube

Length = n
Surface area 4748361345789144
Volume 2.2263260390307E+22
Space diagonal 48725564.8802

Equilateral Triangle

Length = n
Perimeter 84395154
Area 3.4268346265012E+14
Altitude 24362782.4401

Triangular Pyramid

Length = n
Surface area 3.4268346265012E+14
Volume 2.6237503988846E+21
Height 13261419.042818