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

28131491 (number)

28131491 is an odd 8-digits composite number following 28131490 and preceding 28131492. In scientific notation, it is written as 2.8131491 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 27711552 positive integers (up to 28131491) that are relatively prime to 28131491.

Interesting facts

28131491 has 4 divisors, whose sum is 28551432
The reverse of 28131491 is 19413182
Previous prime number is 67

Basic properties

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

Name

Name	twenty-eight million one hundred thirty-one thousand four hundred ninety-one

Notation

Scientific notation	2.8131491 × 10^7
Engineering notation	2.8131491 × 10^6

Prime Factorization of 28131491

Prime Factorization 67 × 419873

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28131491	Product of the distinct prime numbers

The prime factorization of 28131491 is 67 × 419873. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 4, 54, 54, 797, 821, 617, 1698, 78150, 42863, 886158, 588535, 4110329, 4390883, 48188289, 4571702, 135346820, 361698867, 1237958972, 7444846436

Basic calculations (n = 28131491)

Multiplication

n×y

n×2	56262982
n×3	84394473
n×4	112525964
n×5	140657455

Division

n÷y

n÷2	14065745.5
n÷3	9377163.6666667
n÷3	7032872.75
n÷5	5626298.2

Exponentiation

n^y

n²	791380785883081
n³	2.2262721455643E+22
n⁴	6.2628354826492E+29
n⁵	1.7618290001463E+37

Nth Root

^y√n

²√n	5303.9128009423
³√n	304.1334932817
⁴√n	72.827967161952
⁵√n	30.891468226209

Divisors of 28131491

1, 67, 419873, 28131491

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	-28131490	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 28131491 can be divided by 4 positive divisors. The sum of these divisors (counting 28131491) is 1, the average is 0.25.

Base conversion 28131491

Base	System	Value
2	Binary	1101011010100000010100011
3	Ternary	1221221020011002
4	Quaternary	1223110002203
5	Quinary	24200201431
6	Senary	2442542215
8	Octal	153240243
10	Decimal	28131491
12	Duodecimal	950796b
16	Hexadecimal	1ad40a3
20	Vigesimal	8fg8eb
36	Base36	gqyeb

Cryptographic Hash Functions

md5	e0de12e786bfcbd973dd539302d8454e
sha1	819787c2b17ab1303c94f05af837098489ae0697
sha256	6d468946bcf5dd4e40925f2ea4365fb74b3e8bbce5805fed483289ac27386866
sha512	79527f27478fa51f1f500caa336e80b16cb37c245228fad68acb273583144702f7b168f16a3f2fba041d617ca99f22334198f2fc9db7eb0905354a5376e4b0d3
ripemd-160	fd50f32b1e4ac7f8f0d7e885c938df2321aa0f1f

28131491 as geometric shapes

Circle

Radius = n

Diameter	56262982
Circumference	176755370.92025
Area	2.4861960631224E+15

Sphere

Radius = n

Volume	9.3253869565284E+22
Surface area	9.9447842524896E+15
Circumference	176755370.92025

Square

Length = n

Perimeter	112525964
Area	791380785883081
Diagonal	39783936.101977

Cube

Length = n

Surface area	4748284715298486
Volume	2.2262721455643E+22
Space diagonal	48725171.704667

Equilateral Triangle

Length = n

Perimeter	84394473
Area	3.4267793232082E+14
Altitude	24362585.852333

Triangular Pyramid

Length = n

Surface area	3.4267793232082E+14
Volume	2.6236868848254E+21
Height	13261312.033992