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.
28805909 has 8 divisors, whose sum is 31473120
The reverse of 28805909 is 90950882
Previous prime number is 811
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million eight hundred five thousand nine hundred nine
Scientific notation
2.8805909 × 10^7
Engineering notation
2.8805909 × 10^6
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.
7 , 10 , 52 , 22 , 632 , 233 , 3946 , 7730 , 17432 , 74811 , 600780 , 558361 , 8374896 , 1004393 , 36449823 , 87826961 , 633199431 , 453501857 , 3086011754 , 908579029
n×2
57611818
n×3
86417727
n×4
115223636
n×5
144029545
n÷2
14402954.5
n÷3
9601969.6666667
n÷3
7201477.25
n÷5
5761181.8
n2
829780393316281
n3
2.3902578499853E+22
n4
6.8853550113212E+29
n5
1.9833890988881E+37
2 √n
5367.1136563334
3 √n
306.54473505366
4 √n
73.260587332708
5 √n
31.038184964838
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
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
md5
b04c58b1cbb3b18494c135cb5745c64c
sha1
f08881be115e354f0941f9d5f52441cedf1b0dcd
sha256
17c33e07b1e95dfac5409de0d3ce985287d386a2af5649160b9538fe5e726804
sha512
716c4290ffccf4a1201e992d1972d455ced99c3cb114f732d11972489514b899fa4f5eb843c6eb141f728f46536d4e4d8c7a3b595cf2443bf3aea1985f800c73
ripemd-160
cb2a48cab265ec7690e145673568f6ff5bd1f670
Diameter
57611818
Circumference
180992864.18875
Area
2.6068319877353E+15
Volume
1.0012288668932E+23
Surface area
1.0427327950941E+16
Circumference
180992864.18875
Perimeter
115223636
Area
829780393316281
Diagonal
40737707.184285
Surface area
4978682359897686
Volume
2.3902578499853E+22
Space diagonal
49893297.946206
Perimeter
86417727
Area
3.5930545008707E+14
Altitude
24946648.973103
Surface area
3.5930545008707E+14
Volume
2.8169458908483E+21
Height
13579235.728095