28445 (number)

28445 is an odd 5-digits composite number following 28444 and preceding 28446. In scientific notation, it is written as 2.8445 × 10^4. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 22752 positive integers (up to 28445) that are relatively prime to 28445.

Interesting facts

Basic properties

Name

Name twenty-eight thousand four hundred forty-five

Notation

Scientific notation 2.8445 × 10^4
Engineering notation 2.8445 × 10^3

Prime Factorization of 28445

Prime Factorization 5 × 5689

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28445
Product of the distinct prime numbers

The prime factorization of 28445 is 5 × 5689. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 76, 85, 460, 735, 6986, 5595, 80349, 84861, 34991, 735810, 6558609, 7402765, 39560603, 7019676, 289013990, 634305068, 1682201545, 8847826083

Basic calculations (n = 28445)

Multiplication

n×y
n×2 56890
n×3 85335
n×4 113780
n×5 142225

Division

n÷y
n÷2 14222.5
n÷3 9481.6666666667
n÷3 7111.25
n÷5 5689

Exponentiation

ny
n2 809118025
n3 23015362221125
n4 654671978379900625
n5 1.8622144425016E+22

Nth Root

y√n
2√n 168.65645555389
3√n 30.525911868573
4√n 12.986780030242
5√n 7.7768046109612

Divisors of 28445

1, 5, 5689, 28445

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 -28444
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 28445 can be divided by 4 positive divisors. The sum of these divisors (counting 28445) is 1, the average is 0.25.

Base conversion 28445

Base System Value
2 Binary 110111100011101
3 Ternary 1110000112
4 Quaternary 12330131
5 Quinary 1402240
6 Senary 335405
8 Octal 67435
10 Decimal 28445
12 Duodecimal 14565
16 Hexadecimal 6f1d
20 Vigesimal 3b25
36 Base36 ly5

Cryptographic Hash Functions

md5 4eedf3f92629bc3b1a208cfaacc4b2d2
sha1 5b143f25b4a533a3112bfb77bcd6f7aefd3ae785
sha256 2c153ce8736f61178dbcf3402395c140da6e8da007c44773565d4e478c640b5e
sha512 c87f6154d747e1719299e7b60e45d227937f4df42dde5105883ab37ffa8f86563e78cc8cd1b802fbaf70870ae75431e852acc13c4654f6d94faf7b1dc6c2b354
ripemd-160 2d5b8136422f297eed8682d242863e5737588d56

28445 as geometric shapes

Circle

Radius = n
Diameter 56890
Circumference 178725.20606272
Area 2541919243.2271

Sphere

Radius = n
Volume 96406523831459
Surface area 10167676972.908
Circumference 178725.20606272

Square

Length = n
Perimeter 113780
Area 809118025
Diagonal 40227.304781703

Cube

Length = n
Surface area 4854708150
Volume 23015362221125
Space diagonal 49268.185221297

Equilateral Triangle

Length = n
Perimeter 85335
Area 350358382.15495
Altitude 24634.092610648

Triangular Pyramid

Length = n
Surface area 350358382.15495
Volume 2712386449670.4
Height 13409.101593901