28420 (number)

28420 is an even 5-digits composite number following 28419 and preceding 28421. In scientific notation, it is written as 2.8420 × 10^4. The sum of its digits is 16. It has a total of 6 prime factors and 36 positive divisors. There are 9408 positive integers (up to 28420) that are relatively prime to 28420.

Interesting facts

Basic properties

Name

Name twenty-eight thousand four hundred twenty

Notation

Scientific notation 2.8420 × 10^4
Engineering notation 2.8420 × 10^3

Prime Factorization of 28420

Prime Factorization 2 × 2 × 5 × 7 × 7 × 29

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2030
Product of the distinct prime numbers

The prime factorization of 28420 is 2 × 2 × 5 × 7 × 7 × 29. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 10, 83, 62, 344, 876, 337, 4908, 41917, 63232, 421378, 369655, 4758468, 136808, 49619328, 78133452, 110985577, 850526039, 485893485, 9093511368

Basic calculations (n = 28420)

Multiplication

n×y
n×2 56840
n×3 85260
n×4 113680
n×5 142100

Division

n÷y
n÷2 14210
n÷3 9473.3333333333
n÷3 7105
n÷5 5684

Exponentiation

ny
n2 807696400
n3 22954731688000
n4 652373474572960000
n5 1.8540454147364E+22

Nth Root

y√n
2√n 168.58232410309
3√n 30.51696628376
4√n 12.983925604496
5√n 7.7754371403982

Divisors of 28420

1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 14210, 28420

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28420 can be divided by 36 positive divisors. The sum of these divisors (counting 28420) is 1, the average is 0.027777777777778.

Base conversion 28420

Base System Value
2 Binary 110111100000100
3 Ternary 1102222121
4 Quaternary 12330010
5 Quinary 1402140
6 Senary 335324
8 Octal 67404
10 Decimal 28420
12 Duodecimal 14544
16 Hexadecimal 6f04
20 Vigesimal 3b10
36 Base36 lxg

Cryptographic Hash Functions

md5 ebe048f25228d088e0216147377171b2
sha1 f6b41fba18a32d4c617e4393e2dcb4e55c3cee30
sha256 1946055f8530ca77a6effd000b795cae7e061f7625a2a3878602e5fa4b0e0ab2
sha512 26667369a9102db6608fa660582c40426050dbc2bf9ea91b492fa531f081fc7d3299695300c6334189a39a3c196c559b71c171b04231ef2de00fa164312e89c6
ripemd-160 c858ae86ef5ffbb5432a07cfd549775001a8d486

28420 as geometric shapes

Circle

Radius = n
Diameter 56840
Circumference 178568.12643004
Area 2537453076.5709

Sphere

Radius = n
Volume 96152555248194
Surface area 10149812306.284
Circumference 178568.12643004

Square

Length = n
Perimeter 113680
Area 807696400
Diagonal 40191.949442643

Cube

Length = n
Surface area 4846178400
Volume 22954731688000
Space diagonal 49224.883951107

Equilateral Triangle

Length = n
Perimeter 85260
Area 349742800.47262
Altitude 24612.441975554

Triangular Pyramid

Length = n
Surface area 349742800.47262
Volume 2705241072817.1
Height 13397.316480881