28438 (number)

28438 is an even 5-digits composite number following 28437 and preceding 28439. In scientific notation, it is written as 2.8438 × 10^4. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 13920 positive integers (up to 28438) that are relatively prime to 28438.

Interesting facts

Basic properties

Name

Name twenty-eight thousand four hundred thirty-eight

Notation

Scientific notation 2.8438 × 10^4
Engineering notation 2.8438 × 10^3

Prime Factorization of 28438

Prime Factorization 2 × 241 × 59

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28438
Product of the distinct prime numbers

The prime factorization of 28438 is 2 × 241 × 59. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 8, 83, 89, 916, 663, 101, 9386, 62876, 98449, 66770, 775075, 6438608, 7266930, 30957086, 34407841, 853660339, 474497484, 5876096959, 8653423969

Basic calculations (n = 28438)

Multiplication

n×y
n×2 56876
n×3 85314
n×4 113752
n×5 142190

Division

n÷y
n÷2 14219
n÷3 9479.3333333333
n÷3 7109.5
n÷5 5687.6

Exponentiation

ny
n2 808719844
n3 22998374923672
n4 654027786079384336
n5 1.8599242180526E+22

Nth Root

y√n
2√n 168.63570203252
3√n 30.523407633339
4√n 12.985980980754
5√n 7.7764218161525

Divisors of 28438

1, 2, 59, 118, 241, 482, 14219, 28438

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28438 can be divided by 8 positive divisors. The sum of these divisors (counting 28438) is 1, the average is 0.125.

Base conversion 28438

Base System Value
2 Binary 110111100010110
3 Ternary 1110000021
4 Quaternary 12330112
5 Quinary 1402223
6 Senary 335354
8 Octal 67426
10 Decimal 28438
12 Duodecimal 1455a
16 Hexadecimal 6f16
20 Vigesimal 3b1i
36 Base36 lxy

Cryptographic Hash Functions

md5 4f3e1a55bdd71769da5e20b374f20f43
sha1 e0b92c6a4dd7e39a470fdf11861038d32b3cb051
sha256 a1039125494bd838a4723191e17ab5a537281540e577c87abb342edc0eaeddcb
sha512 bd726645d50c9f4950612ea3352297cd3f7bc5f70bb7fa8a28061e374af05a27aaad1c93720d758e45d9269a094c03356e4c49aa552f6dd54d238f618c2d3bca
ripemd-160 1fbaf58ee0fe8e02259b2c490ae065e140432c64

28438 as geometric shapes

Circle

Radius = n
Diameter 56876
Circumference 178681.22376557
Area 2540668320.7227

Sphere

Radius = n
Volume 96335367606282
Surface area 10162673282.891
Circumference 178681.22376557

Square

Length = n
Perimeter 113752
Area 808719844
Diagonal 40217.405286766

Cube

Length = n
Surface area 4852319064
Volume 22998374923672
Space diagonal 49256.060865644

Equilateral Triangle

Length = n
Perimeter 85314
Area 350185964.72429
Altitude 24628.030432822

Triangular Pyramid

Length = n
Surface area 350185964.72429
Volume 2710384477466.5
Height 13405.801762255