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

28001809 (number)

28001809 is an odd 8-digits composite number following 28001808 and preceding 28001810. In scientific notation, it is written as 2.8001809 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 25456180 positive integers (up to 28001809) that are relatively prime to 28001809.

Interesting facts

28001809 has 4 divisors, whose sum is 30547440
The reverse of 28001809 is 90810082
Previous prime number is 11

Basic properties

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

Name

Name	twenty-eight million one thousand eight hundred nine

Notation

Scientific notation	2.8001809 × 10^7
Engineering notation	2.8001809 × 10^6

Prime Factorization of 28001809

Prime Factorization 11 × 2545619

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28001809	Product of the distinct prime numbers

The prime factorization of 28001809 is 11 × 2545619. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 7, 9, 47, 871, 467, 7486, 4768, 7102, 52963, 639831, 263505, 9762311, 2709371, 22984754, 82483402, 398460960, 535580323, 8277098479, 7971015935

Basic calculations (n = 28001809)

Multiplication

n×y

n×2	56003618
n×3	84005427
n×4	112007236
n×5	140009045

Division

n÷y

n÷2	14000904.5
n÷3	9333936.3333333
n÷3	7000452.25
n÷5	5600361.8

Exponentiation

n^y

n²	784101307272481
n³	2.1956255042894E+22
n⁴	6.1481486006641E+29
n⁵	1.7215928281941E+37

Nth Root

^y√n

²√n	5291.6735538013
³√n	303.66543655799
⁴√n	72.743890147567
⁵√n	30.862934546065

Divisors of 28001809

1, 11, 2545619, 28001809

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	-28001808	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 28001809 can be divided by 4 positive divisors. The sum of these divisors (counting 28001809) is 1, the average is 0.25.

Base conversion 28001809

Base	System	Value
2	Binary	1101010110100011000010001
3	Ternary	1221200122021001
4	Quaternary	1222310120101
5	Quinary	24132024214
6	Senary	2440102001
8	Octal	152643021
10	Decimal	28001809
12	Duodecimal	9464901
16	Hexadecimal	1ab4611
20	Vigesimal	8f04a9
36	Base36	go6c1

Cryptographic Hash Functions

md5	3361177231ed1e42c1c9808d9fd4f3ee
sha1	58563b7bbd4ce63af57e7091395b4ec0984f302e
sha256	5c7c26a214d6d3363c1688bdcbe166a14476894a66f8f99eecf7c8cd290415e1
sha512	6955cb4eab0182abbd8cb3e7c986c79545f9dbe7b8664bf07efcc64611973e233545ea8855dbdf7087d783ab4c29153ac1f053a08bb7303828c2aa048841b78c
ripemd-160	68657246230aa2b21385aebb70e7ad65820957ef

28001809 as geometric shapes

Circle

Radius = n

Diameter	56003618
Circumference	175940554.88325
Area	2.4633269065974E+15

Sphere

Radius = n

Volume	9.1970146057468E+22
Surface area	9.8533076263895E+15
Circumference	175940554.88325

Square

Length = n

Perimeter	112007236
Area	784101307272481
Diagonal	39600538.058781

Cube

Length = n

Surface area	4704607843634886
Volume	2.1956255042894E+22
Space diagonal	48500555.891839

Equilateral Triangle

Length = n

Perimeter	84005427
Area	3.3952582561928E+14
Altitude	24250277.94592

Triangular Pyramid

Length = n

Surface area	3.3952582561928E+14
Volume	2.5875694717153E+21
Height	13200179.352927