28685409 is an odd 8-digits composite number following 28685408
and preceding 28685410 . In scientific notation, it is written as 2.8685409 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 17998656 positive integers (up to 28685409) that are relatively prime to 28685409.
28685409 has 8 divisors, whose sum is 40497120
The reverse of 28685409 is 90458682
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million six hundred eighty-five thousand four hundred nine
Scientific notation
2.8685409 × 10^7
Engineering notation
2.8685409 × 10^6
Prime Factorization
3 × 17 × 562459
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28685409
Product of the distinct prime numbers
The prime factorization of 28685409 is 3 × 17 × 562459.
Since it has a total of 3 prime factors.
7 , 7 , 98 , 49 , 292 , 744 , 272 , 3813 , 5307 , 21145 , 460054 , 655050 , 1795570 , 7519014 , 8810138 , 73758272 , 185064919 , 474236268 , 6334964486 , 4496584448
n×2
57370818
n×3
86056227
n×4
114741636
n×5
143427045
n÷2
14342704.5
n÷3
9561803
n÷3
7171352.25
n÷5
5737081.8
n2
822852689497281
n3
2.360386594498E+22
n4
6.7708654861291E+29
n5
1.942250457536E+37
2 √n
5355.8761188063
3 √n
306.11669478046
4 √n
73.183851489289
5 √n
31.012173806969
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
-28685408
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 28685409 can be divided by 8 positive divisors.
The sum of these divisors (counting 28685409) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011010001100001
3
Ternary
1222222100222120
4
Quaternary
1231123101201
5
Quinary
24320413114
6
Senary
2502454453
8
Octal
155332141
10
Decimal
28685409
12
Duodecimal
9734429
16
Hexadecimal
1b5b461
20
Vigesimal
8j5da9
36
Base36
h2tsx
md5
c291c5ea4a4781b3fca5b8523c3ddad5
sha1
8edb2790e006ab2300635c723c8d517c203417b5
sha256
fb8018d57696b6e553d4ac2351e079569b0cc7ab6519f8f3c2a5f36d6a47dd57
sha512
3dfd819fad4ba24a89d152dc5cc338bfc8552700394e665744ce446b0d05820f25c2a4004d237d562e8397a8157504818c14cf9cc95d999455171f0e079dc44a
ripemd-160
bc601d11a4e51b819c78beb5f5bac0190aae3125
Diameter
57370818
Circumference
180235740.35924
Area
2.5850679643113E+15
Volume
9.8871642465421E+22
Surface area
1.0340271857245E+16
Circumference
180235740.35924
Perimeter
114741636
Area
822852689497281
Diagonal
40567294.450019
Surface area
4937116136983686
Volume
2.360386594498E+22
Space diagonal
49684585.823894
Perimeter
86056227
Area
3.563056663385E+14
Altitude
24842292.911947
Surface area
3.563056663385E+14
Volume
2.7817422786522E+21
Height
13522431.48334