28991230 (number)

28991230 is an even 8-digits composite number following 28991229 and preceding 28991231. In scientific notation, it is written as 2.8991230 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 11512512 positive integers (up to 28991230) that are relatively prime to 28991230.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8991230 × 10^7
Engineering notation 2.8991230 × 10^6

Prime Factorization of 28991230

Prime Factorization 2 × 5 × 139 × 20857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28991230
Product of the distinct prime numbers

The prime factorization of 28991230 is 2 × 5 × 139 × 20857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 90, 16, 918, 830, 9085, 7360, 77755, 22629, 133360, 63627, 2443996, 9001654, 37318014, 13350228, 424584020, 990455219, 8556249409, 2524208904

Basic calculations (n = 28991230)

Multiplication

n×y
n×2 57982460
n×3 86973690
n×4 115964920
n×5 144956150

Division

n÷y
n÷2 14495615
n÷3 9663743.3333333
n÷3 7247807.5
n÷5 5798246

Exponentiation

ny
n2 840491416912900
n3 2.4366879980748E+22
n4 7.0642582190425E+29
n5 2.0480153480765E+37

Nth Root

y√n
2√n 5384.3504715054
3√n 307.20070907994
4√n 73.378133469756
5√n 31.078019029678

Divisors of 28991230

1, 2, 5, 10, 139, 278, 695, 1390, 20857, 41714, 104285, 208570, 2899123, 5798246, 14495615, 28991230

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28991229
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28991230 can be divided by 16 positive divisors. The sum of these divisors (counting 28991230) is 1, the average is 0.0625.

Base conversion 28991230

Base System Value
2 Binary 1101110100101111011111110
3 Ternary 2000112220111021
4 Quaternary 1232211323332
5 Quinary 24410204410
6 Senary 2513214354
8 Octal 156457376
10 Decimal 28991230
12 Duodecimal 98613ba
16 Hexadecimal 1ba5efe
20 Vigesimal 913i1a
36 Base36 h9dry

Cryptographic Hash Functions

md5 2415e754fc9400b9c4eecc72017462dc
sha1 996f51e79249d7c5b06ddfe4db35b1037bffa1b5
sha256 18a6c7683dbfa8db4ef97b13fc45cd67eda7341b0e10ae72a3e6ac6d75dd17b6
sha512 88e84448e91f6e70b88ea79b572042911acef5ffc8bf1384d72e88d5cf90f06d6cedf59c8e7f3e563b6211af1686201936d1ab972f572f472e7e9753d84cb016
ripemd-160 3d71c6665e5f20cdf89e5228f68828095219dee3

28991230 as geometric shapes

Circle

Radius = n
Diameter 57982460
Circumference 182157270.37306
Area 2.6404816607788E+15

Sphere

Radius = n
Volume 1.0206774818456E+23
Surface area 1.0561926643115E+16
Circumference 182157270.37306

Square

Length = n
Perimeter 115964920
Area 840491416912900
Diagonal 40999790.655878

Cube

Length = n
Surface area 5042948501477400
Volume 2.4366879980748E+22
Space diagonal 50214283.333915

Equilateral Triangle

Length = n
Perimeter 86973690
Area 3.6394345935467E+14
Altitude 25107141.666958

Triangular Pyramid

Length = n
Surface area 3.6394345935467E+14
Volume 2.8716643451242E+21
Height 13666596.885293