28888945 (number)

28888945 is an odd 8-digits composite number following 28888944 and preceding 28888946. In scientific notation, it is written as 2.8888945 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 23111152 positive integers (up to 28888945) that are relatively prime to 28888945.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred eighty-eight thousand nine hundred forty-five

Notation

Scientific notation 2.8888945 × 10^7
Engineering notation 2.8888945 × 10^6

Prime Factorization of 28888945

Prime Factorization 5 × 5777789

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28888945
Product of the distinct prime numbers

The prime factorization of 28888945 is 5 × 5777789. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28888945)

Multiplication

n×y
n×2 57777890
n×3 86666835
n×4 115555780
n×5 144444725

Division

n÷y
n÷2 14444472.5
n÷3 9629648.3333333
n÷3 7222236.25
n÷5 5777789

Exponentiation

ny
n2 834571143213025
n3 2.4109879854868E+22
n4 6.965089930839E+29
n5 2.0121409993206E+37

Nth Root

y√n
2√n 5374.8437186582
3√n 306.83900140886
4√n 73.313325655424
5√n 31.056058520839

Divisors of 28888945

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28888944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28888945 can be divided by 4 positive divisors. The sum of these divisors (counting 28888945) is 1, the average is 0.25.

Base conversion 28888945

Base System Value
2 Binary 1101110001100111101110001
3 Ternary 2000100201011221
4 Quaternary 1232030331301
5 Quinary 24343421240
6 Senary 2511105041
8 Octal 156147561
10 Decimal 28888945
12 Duodecimal 9812181
16 Hexadecimal 1b8cf71
20 Vigesimal 90b275
36 Base36 h76up

Cryptographic Hash Functions

md5 2429da389ddc84b2f2c1f44ec6c58954
sha1 66634ec2ab9bc3fcc10ad163bf03420af41103b5
sha256 9e14017f59a79f5a6a991f6c827e93f6ee74538a11c9e3ecd623693f265a78a5
sha512 49004197bdef9723f61eed5af5b8bf1c8c7831e5085f6826310d04820a12d5c910f94cb344c142ee639513a4745541e00b3f8aa0241b21679a9c9252f60f5f41
ripemd-160 06b89749694fa556c583842c2f22ae4eb207977d

28888945 as geometric shapes

Circle

Radius = n
Diameter 57777890
Circumference 181514594.76392
Area 2.6218825724161E+15

Sphere

Radius = n
Volume 1.0099122857465E+23
Surface area 1.0487530289664E+16
Circumference 181514594.76392

Square

Length = n
Perimeter 115555780
Area 834571143213025
Diagonal 40855137.82165

Cube

Length = n
Surface area 5007426859278150
Volume 2.4109879854868E+22
Space diagonal 50037120.517063

Equilateral Triangle

Length = n
Perimeter 86666835
Area 3.6137990564395E+14
Altitude 25018560.258531

Triangular Pyramid

Length = n
Surface area 3.6137990564395E+14
Volume 2.8413765898284E+21
Height 13618379.273883