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

28291221 (number)

28291221 is an odd 8-digits composite number following 28291220 and preceding 28291222. In scientific notation, it is written as 2.8291221 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 16166304 positive integers (up to 28291221) that are relatively prime to 28291221.

Interesting facts

28291221 has 8 divisors, whose sum is 32931800
The reverse of 28291221 is 12219282
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-eight million two hundred ninety-one thousand two hundred twenty-one

Notation

Scientific notation	2.8291221 × 10^7
Engineering notation	2.8291221 × 10^6

Prime Factorization of 28291221

Prime Factorization 21 × 9 × 149689

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28291221	Product of the distinct prime numbers

The prime factorization of 28291221 is 21 × 9 × 149689. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 75, 98, 33, 97, 5459, 697, 24075, 11667, 840101, 190277, 2012754, 4740421, 99476817, 33975359, 980568578, 543771075, 7294852624, 6852170439

Basic calculations (n = 28291221)

Multiplication

n×y

n×2	56582442
n×3	84873663
n×4	113164884
n×5	141456105

Division

n÷y

n÷2	14145610.5
n÷3	9430407
n÷3	7072805.25
n÷5	5658244.2

Exponentiation

n^y

n²	800393185670841
n³	2.2644100502708E+22
n⁴	6.4062925166832E+29
n⁵	1.8124183738013E+37

Nth Root

^y√n

²√n	5318.9492383365
³√n	304.70802839201
⁴√n	72.931126676725
⁵√n	30.926469040926

Divisors of 28291221

1, 9, 21, 189, 149689, 1347201, 3143469, 28291221

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	-28291220	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 28291221 can be divided by 8 positive divisors. The sum of these divisors (counting 28291221) is 1, the average is 0.125.

Base conversion 28291221

Base	System	Value
2	Binary	1101011111011000010010101
3	Ternary	1222020100021000
4	Quaternary	1223323002111
5	Quinary	24220304341
6	Senary	2450213513
8	Octal	153730225
10	Decimal	28291221
12	Duodecimal	9584299
16	Hexadecimal	1afb095
20	Vigesimal	8gg811
36	Base36	gudn9

Cryptographic Hash Functions

md5	4a23d725da0e7e86266b88c04642f712
sha1	9923ba6a0c835583268acf7ce035ddb29d0c8a94
sha256	429cc2bd568bca37e2e5bd0e6a12a48516b72e767005cdec24b9e4e278779c8a
sha512	228d521ed2d6c22ceaef2a9c20103ca4ce7a44637573a74476c0546c78273609751d8d74743a288fa3b3c1b829d1d741a89af5e9ab8ca93990af6bb40e18c745
ripemd-160	3f104d94f573341779fd783f5f252e5bfee0c0c8

28291221 as geometric shapes

Circle

Radius = n

Diameter	56582442
Circumference	177758984.10937
Area	2.5145093520868E+15

Sphere

Radius = n

Volume	9.4851386381941E+22
Surface area	1.0058037408347E+16
Circumference	177758984.10937

Square

Length = n

Perimeter	113164884
Area	800393185670841
Diagonal	40009828.434295

Cube

Length = n

Surface area	4802359114025046
Volume	2.2644100502708E+22
Space diagonal	49001832.18016

Equilateral Triangle

Length = n

Perimeter	84873663
Area	3.4658041590345E+14
Altitude	24500916.09008

Triangular Pyramid

Length = n

Surface area	3.4658041590345E+14
Volume	2.6686328365557E+21
Height	13336609.478098