28508728 (number)

28508728 is an even 8-digits composite number following 28508727 and preceding 28508729. In scientific notation, it is written as 2.8508728 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 16 positive divisors. There are 13415808 positive integers (up to 28508728) that are relatively prime to 28508728.

Interesting facts

Basic properties

Name

Name twenty-eight million five hundred eight thousand seven hundred twenty-eight

Notation

Scientific notation 2.8508728 × 10^7
Engineering notation 2.8508728 × 10^6

Prime Factorization of 28508728

Prime Factorization 2 × 2 × 2 × 17 × 209623

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7127182
Product of the distinct prime numbers

The prime factorization of 28508728 is 2 × 2 × 2 × 17 × 209623. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 4, 21, 86, 973, 166, 63, 1437, 87454, 98263, 103557, 137536, 5603321, 6140510, 36872178, 67346279, 710246155, 828719795, 5745411450, 8704219588

Basic calculations (n = 28508728)

Multiplication

n×y
n×2 57017456
n×3 85526184
n×4 114034912
n×5 142543640

Division

n÷y
n÷2 14254364
n÷3 9502909.3333333
n÷3 7127182
n÷5 5701745.6

Exponentiation

ny
n2 812747572177984
n3 2.3170399467883E+22
n4 6.6055861608121E+29
n5 1.8831685913916E+37

Nth Root

y√n
2√n 5339.3565155363
3√n 305.48691552522
4√n 73.070900607125
5√n 30.973876906467

Divisors of 28508728

1, 2, 4, 8, 17, 34, 68, 136, 209623, 419246, 838492, 1676984, 3563591, 7127182, 14254364, 28508728

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 -28508727
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 28508728 can be divided by 16 positive divisors. The sum of these divisors (counting 28508728) is 1, the average is 0.0625.

Base conversion 28508728

Base System Value
2 Binary 1101100110000001000111000
3 Ternary 1222122101121211
4 Quaternary 1230300020320
5 Quinary 24244234403
6 Senary 2455012504
8 Octal 154601070
10 Decimal 28508728
12 Duodecimal 966a134
16 Hexadecimal 1b30238
20 Vigesimal 8i3bg8
36 Base36 gz1h4

Cryptographic Hash Functions

md5 cfffdfed99f10cf6cced570c045cb99a
sha1 ac594606e8a468eb748abafeab58716e8c4aed51
sha256 5a6f2d2d6de28bfc0eff623070c8729e98e57512bd56e58c23822ee668db08e9
sha512 48c9dda62836efaa455ac475855efa709d445c2a6b7716bb2f0df9cb828b60c8dde79217c25fdb8c48fc013fb77e2523e3c2bd1b4845ca183ea85956ff7d8125
ripemd-160 4e0ac69c24d0ec7dbe4ffe15577c43ca1893c860

28508728 as geometric shapes

Circle

Radius = n
Diameter 57017456
Circumference 179125620.89598
Area 2.5533218019773E+15

Sphere

Radius = n
Volume 9.7055942332054E+22
Surface area 1.0213287207909E+16
Circumference 179125620.89598

Square

Length = n
Perimeter 114034912
Area 812747572177984
Diagonal 40317429.783606

Cube

Length = n
Surface area 4876485433067904
Volume 2.3170399467883E+22
Space diagonal 49378565.355161

Equilateral Triangle

Length = n
Perimeter 85526184
Area 3.5193002218513E+14
Altitude 24689282.677581

Triangular Pyramid

Length = n
Surface area 3.5193002218513E+14
Volume 2.7306577644235E+21
Height 13439143.261202