28805909 (number)

28805909 is an odd 8-digits composite number following 28805908 and preceding 28805910. In scientific notation, it is written as 2.8805909 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 26146800 positive integers (up to 28805909) that are relatively prime to 28805909.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8805909 × 10^7
Engineering notation 2.8805909 × 10^6

Prime Factorization of 28805909

Prime Factorization 11 × 811 × 3229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28805909
Product of the distinct prime numbers

The prime factorization of 28805909 is 11 × 811 × 3229. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28805909)

Multiplication

n×y
n×2 57611818
n×3 86417727
n×4 115223636
n×5 144029545

Division

n÷y
n÷2 14402954.5
n÷3 9601969.6666667
n÷3 7201477.25
n÷5 5761181.8

Exponentiation

ny
n2 829780393316281
n3 2.3902578499853E+22
n4 6.8853550113212E+29
n5 1.9833890988881E+37

Nth Root

y√n
2√n 5367.1136563334
3√n 306.54473505366
4√n 73.260587332708
5√n 31.038184964838

Divisors of 28805909

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28805908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28805909 can be divided by 8 positive divisors. The sum of these divisors (counting 28805909) is 1, the average is 0.125.

Base conversion 28805909

Base System Value
2 Binary 1101101111000101100010101
3 Ternary 2000012111021112
4 Quaternary 1231320230111
5 Quinary 24333242114
6 Senary 2505224405
8 Octal 155705425
10 Decimal 28805909
12 Duodecimal 9792105
16 Hexadecimal 1b78b15
20 Vigesimal 900ef9
36 Base36 h5es5

Cryptographic Hash Functions

md5 b04c58b1cbb3b18494c135cb5745c64c
sha1 f08881be115e354f0941f9d5f52441cedf1b0dcd
sha256 17c33e07b1e95dfac5409de0d3ce985287d386a2af5649160b9538fe5e726804
sha512 716c4290ffccf4a1201e992d1972d455ced99c3cb114f732d11972489514b899fa4f5eb843c6eb141f728f46536d4e4d8c7a3b595cf2443bf3aea1985f800c73
ripemd-160 cb2a48cab265ec7690e145673568f6ff5bd1f670

28805909 as geometric shapes

Circle

Radius = n
Diameter 57611818
Circumference 180992864.18875
Area 2.6068319877353E+15

Sphere

Radius = n
Volume 1.0012288668932E+23
Surface area 1.0427327950941E+16
Circumference 180992864.18875

Square

Length = n
Perimeter 115223636
Area 829780393316281
Diagonal 40737707.184285

Cube

Length = n
Surface area 4978682359897686
Volume 2.3902578499853E+22
Space diagonal 49893297.946206

Equilateral Triangle

Length = n
Perimeter 86417727
Area 3.5930545008707E+14
Altitude 24946648.973103

Triangular Pyramid

Length = n
Surface area 3.5930545008707E+14
Volume 2.8169458908483E+21
Height 13579235.728095