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

28018081 (number)

28018081 is an odd 8-digits composite number following 28018080 and preceding 28018082. In scientific notation, it is written as 2.8018081 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 22168080 positive integers (up to 28018081) that are relatively prime to 28018081.

Interesting facts

28018081 has 4 divisors, whose sum is 28326064
The reverse of 28018081 is 18081082
Previous prime number is 91

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-eight million eighteen thousand eighty-one

Notation

Scientific notation	2.8018081 × 10^7
Engineering notation	2.8018081 × 10^6

Prime Factorization of 28018081

Prime Factorization 91 × 307891

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28018081	Product of the distinct prime numbers

The prime factorization of 28018081 is 91 × 307891. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 10, 6, 67, 180, 17, 2735, 887, 8440, 50605, 388770, 697471, 7563919, 7354120, 52499490, 15687396, 820664914, 66643457, 3690428691, 5540182866

Basic calculations (n = 28018081)

Multiplication

n×y

n×2	56036162
n×3	84054243
n×4	112072324
n×5	140090405

Division

n÷y

n÷2	14009040.5
n÷3	9339360.3333333
n÷3	7004520.25
n÷5	5603616.2

Exponentiation

n^y

n²	785012862922561
n³	2.1994553979406E+22
n⁴	6.1624519495388E+29
n⁵	1.7266007788078E+37

Nth Root

^y√n

²√n	5293.2108403123
³√n	303.72424570094
⁴√n	72.754455810708
⁵√n	30.866520635655

Divisors of 28018081

1, 91, 307891, 28018081

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	-28018080	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 28018081 can be divided by 4 positive divisors. The sum of these divisors (counting 28018081) is 1, the average is 0.25.

Base conversion 28018081

Base	System	Value
2	Binary	1101010111000010110100001
3	Ternary	1221201110120201
4	Quaternary	1222320112201
5	Quinary	24133034311
6	Senary	2440305201
8	Octal	152702641
10	Decimal	28018081
12	Duodecimal	9472201
16	Hexadecimal	1ab85a1
20	Vigesimal	8f2541
36	Base36	goiw1

Cryptographic Hash Functions

md5	47396db8c02e7f6a02b012aeca4eb645
sha1	cba81df4045f135e24f8b62adaba9f9952d96d88
sha256	7b37a833f88b22c1cf0ea107e8667f13eddaa77688c4788513de184548794f59
sha512	1808aa88829a5304f82b9828ac475cd7c087e1fabab9756bcf0836b0cdb13babab8a1937b57350d24fb876172be6e4822c711bf89f90167f17ab5d5c56e75ac4
ripemd-160	3878a0bbb636a1e60c00b77e612c11dad2bf2069

28018081 as geometric shapes

Circle

Radius = n

Diameter	56036162
Circumference	176042794.87457
Area	2.466190643131E+15

Sphere

Radius = n

Volume	9.2130572267582E+22
Surface area	9.864762572524E+15
Circumference	176042794.87457

Square

Length = n

Perimeter	112072324
Area	785012862922561
Diagonal	39623550.141868

Cube

Length = n

Surface area	4710077177535366
Volume	2.1994553979406E+22
Space diagonal	48528739.82258

Equilateral Triangle

Length = n

Perimeter	84054243
Area	3.3992054079424E+14
Altitude	24264369.91129

Triangular Pyramid

Length = n

Surface area	3.3992054079424E+14
Volume	2.5920830446686E+21
Height	13207850.047289