Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

28306721 (number)

28306721 is an odd 8-digits composite number following 28306720 and preceding 28306722. In scientific notation, it is written as 2.8306721 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 27075972 positive integers (up to 28306721) that are relatively prime to 28306721.

Interesting facts

28306721 has 4 divisors, whose sum is 29537472
The reverse of 28306721 is 12760382
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-eight million three hundred six thousand seven hundred twenty-one

Notation

Scientific notation	2.8306721 × 10^7
Engineering notation	2.8306721 × 10^6

Prime Factorization of 28306721

Prime Factorization 23 × 1230727

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28306721	Product of the distinct prime numbers

The prime factorization of 28306721 is 23 × 1230727. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 100, 77, 621, 448, 1988, 7018, 63975, 81288, 699596, 915917, 9773644, 666629, 39484866, 45182334, 336722698, 331191377, 4438688469, 2349747286

Basic calculations (n = 28306721)

Multiplication

n×y

n×2	56613442
n×3	84920163
n×4	113226884
n×5	141533605

Division

n÷y

n÷2	14153360.5
n÷3	9435573.6666667
n÷3	7076680.25
n÷5	5661344.2

Exponentiation

n^y

n²	801270453771841
n³	2.2681339180463E+22
n⁴	6.4203434008773E+29
n⁵	1.8173886937283E+37

Nth Root

^y√n

²√n	5320.4060935233
³√n	304.76366534705
⁴√n	72.941113876354
⁵√n	30.929857054849

Divisors of 28306721

1, 23, 1230727, 28306721

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	-28306720	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 28306721 can be divided by 4 positive divisors. The sum of these divisors (counting 28306721) is 1, the average is 0.25.

Base conversion 28306721

Base	System	Value
2	Binary	1101011111110110100100001
3	Ternary	1222021010112002
4	Quaternary	1223332310201
5	Quinary	24221303341
6	Senary	2450413345
8	Octal	153766441
10	Decimal	28306721
12	Duodecimal	9591255
16	Hexadecimal	1afed21
20	Vigesimal	8gi6g1
36	Base36	guplt

Cryptographic Hash Functions

md5	00af03dd0ad5bd7df11f9ebe6c841c0f
sha1	a3033651f295baf2d45f05979aad7c46fc6639f7
sha256	e1e85314f51876bf94ecad2faf83e63b8e35ab46d7483fc823e76a154902510b
sha512	763f92658c09248a3efced3b940a058b2a7d6a376ac6e5a9c25a9d756dd8c29a032a6e64c8d1b287cc70c8ac4aa08c1e3c1190ce33022f34eb972d472b02e633
ripemd-160	2335519b05e382b8047a6f14c86bf1a20d9995f5

28306721 as geometric shapes

Circle

Radius = n

Diameter	56613442
Circumference	177856373.48163
Area	2.5172653711082E+15

Sphere

Radius = n

Volume	9.5007371390561E+22
Surface area	1.0069061484433E+16
Circumference	177856373.48163

Square

Length = n

Perimeter	113226884
Area	801270453771841
Diagonal	40031748.744511

Cube

Length = n

Surface area	4807622722631046
Volume	2.2681339180463E+22
Space diagonal	49028678.967677

Equilateral Triangle

Length = n

Perimeter	84920163
Area	3.4696028413415E+14
Altitude	24514339.483838

Triangular Pyramid

Length = n

Surface area	3.4696028413415E+14
Volume	2.6730214568162E+21
Height	13343916.24817