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

28387639 (number)

28387639 is an odd 8-digits composite number following 28387638 and preceding 28387640. In scientific notation, it is written as 2.8387639 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 24332256 positive integers (up to 28387639) that are relatively prime to 28387639.

Interesting facts

28387639 has 4 divisors, whose sum is 32443024
The reverse of 28387639 is 93678382
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

Name	twenty-eight million three hundred eighty-seven thousand six hundred thirty-nine

Notation

Scientific notation	2.8387639 × 10^7
Engineering notation	2.8387639 × 10^6

Prime Factorization of 28387639

Prime Factorization 7 × 4055377

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28387639	Product of the distinct prime numbers

The prime factorization of 28387639 is 7 × 4055377. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 95, 87, 848, 885, 2343, 31, 60438, 42600, 570578, 396153, 1382404, 3327306, 70671275, 37768878, 805983542, 560646504, 5070754838, 3656267427

Basic calculations (n = 28387639)

Multiplication

n×y

n×2	56775278
n×3	85162917
n×4	113550556
n×5	141938195

Division

n÷y

n÷2	14193819.5
n÷3	9462546.3333333
n÷3	7096909.75
n÷5	5677527.8

Exponentiation

n^y

n²	805858047994321
n³	2.2876407351707E+22
n⁴	6.4940719351722E+29
n⁵	1.843513697357E+37

Nth Root

^y√n

²√n	5328.0051614089
³√n	305.05378967105
⁴√n	72.993185719003
⁵√n	30.947520176453

Divisors of 28387639

1, 7, 4055377, 28387639

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	-28387638	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 28387639 can be divided by 4 positive divisors. The sum of these divisors (counting 28387639) is 1, the average is 0.25.

Base conversion 28387639

Base	System	Value
2	Binary	1101100010010100100110111
3	Ternary	1222102020112001
4	Quaternary	1230102210313
5	Quinary	24231401024
6	Senary	2452240131
8	Octal	154224467
10	Decimal	28387639
12	Duodecimal	9610047
16	Hexadecimal	1b12937
20	Vigesimal	8h891j
36	Base36	gwg1j

Cryptographic Hash Functions

md5	4951b18851d8d3778576aa1b38457f6e
sha1	4d608901d5131ce32110975e55983029c76cb9fe
sha256	be278120ad7b189834abee5b5217e20b597466837be48197d28ff59b9d7aa068
sha512	bb2b524d9a3788725a0937f9e0ce6cfcb36ff73ca3efc0f874f9e3326fb8fdb8cbba013dcd21cf33138efde0b6014175869b91d045c93a5c880be570e3e69913
ripemd-160	08457ab33ca85bffac1820ec82c7bfe65d502d62

28387639 as geometric shapes

Circle

Radius = n

Diameter	56775278
Circumference	178364796.27032
Area	2.5316777234152E+15

Sphere

Radius = n

Volume	9.5824471035536E+22
Surface area	1.0126710893661E+16
Circumference	178364796.27032

Square

Length = n

Perimeter	113550556
Area	805858047994321
Diagonal	40146184.077551

Cube

Length = n

Surface area	4835148287965926
Volume	2.2876407351707E+22
Space diagonal	49168833.054924

Equilateral Triangle

Length = n

Perimeter	85162917
Area	3.4894677070361E+14
Altitude	24584416.527462

Triangular Pyramid

Length = n

Surface area	3.4894677070361E+14
Volume	2.696010461263E+21
Height	13382061.359184