28209215 is an odd 8-digits composite number following 28209214
and preceding 28209216 . In scientific notation, it is written as 2.8209215 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 22567368 positive integers (up to 28209215) that are relatively prime to 28209215.
28209215 has 4 divisors, whose sum is 33851064
The reverse of 28209215 is 51290282
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million two hundred nine thousand two hundred fifteen
Scientific notation
2.8209215 × 10^7
Engineering notation
2.8209215 × 10^6
Prime Factorization
5 × 5641843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28209215
Product of the distinct prime numbers
The prime factorization of 28209215 is 5 × 5641843.
Since it has a total of 2 prime factors.
8 , 8 , 40 , 96 , 122 , 87 , 3860 , 6638 , 14066 , 92105 , 124779 , 373814 , 3466709 , 8243383 , 13584513 , 72687861 , 852953056 , 810923999 , 8481999852 , 6487729683
n×2
56418430
n×3
84627645
n×4
112836860
n×5
141046075
n÷2
14104607.5
n÷3
9403071.6666667
n÷3
7052303.75
n÷5
5641843
n2
795759810916225
n3
2.2447759594495E+22
n4
6.3323367666943E+29
n5
1.7863024930408E+37
2 √n
5311.2347905172
3 √n
304.41333074073
4 √n
72.878218903299
5 √n
30.908519291046
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
-28209214
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 28209215 can be divided by 4 positive divisors.
The sum of these divisors (counting 28209215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011100111000000111111
3
Ternary
1222002011202202
4
Quaternary
1223213000333
5
Quinary
24210143330
6
Senary
2444342115
8
Octal
153470077
10
Decimal
28209215
12
Duodecimal
954493b
16
Hexadecimal
1ae703f
20
Vigesimal
8g630f
36
Base36
gsmdb
md5
8019cc47d65c5eb739b0b8a6d6abba3d
sha1
7a1428165d0390b90b926289078643f5902ba4ba
sha256
407387ff2f58ca9d976b8590d7aaa1a2921b92b1fcbee32d48ab9402f1f80855
sha512
9dba32ab46b2186465cc1d7b3f8aef10fac76f8ef8aca6bf6edee9e0cadef042a810e77c9788435ed7d0c682b2969b6e6642d6440935ffe822f2d2ae77ea4ac1
ripemd-160
a97873baefa6b18dc2f04573111503271f62751c
Diameter
56418430
Circumference
177243725.21507
Area
2.4999531759964E+15
Volume
9.4028955508821E+22
Surface area
9.9998127039857E+15
Circumference
177243725.21507
Perimeter
112836860
Area
795759810916225
Diagonal
39893854.436899
Surface area
4774558865497350
Volume
2.2447759594495E+22
Space diagonal
48859793.621634
Perimeter
84627645
Area
3.4457410578208E+14
Altitude
24429896.810817
Surface area
3.4457410578208E+14
Volume
2.6454938386188E+21
Height
13297951.478966