28856561 is an odd 8-digits composite number following 28856560
and preceding 28856562 . In scientific notation, it is written as 2.8856561 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 28797300 positive integers (up to 28856561) that are relatively prime to 28856561.
28856561 has 4 divisors, whose sum is 28915824
The reverse of 28856561 is 16565882
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million eight hundred fifty-six thousand five hundred sixty-one
Scientific notation
2.8856561 × 10^7
Engineering notation
2.8856561 × 10^6
Prime Factorization
491 × 58771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28856561
Product of the distinct prime numbers
The prime factorization of 28856561 is 491 × 58771.
Since it has a total of 2 prime factors.
2 , 5 , 46 , 65 , 404 , 384 , 7288 , 6406 , 47599 , 37263 , 642343 , 297294 , 8913011 , 1407216 , 2923186 , 20922739 , 732265177 , 219215438 , 4399291908 , 205490400
n×2
57713122
n×3
86569683
n×4
115426244
n×5
144282805
n÷2
14428280.5
n÷3
9618853.6666667
n÷3
7214140.25
n÷5
5771312.2
n2
832701112746721
n3
2.4028890454744E+22
n4
6.9339114316963E+29
n5
2.0008883819734E+37
2 √n
5371.830321222
3 √n
306.72430482992
4 √n
73.292771275358
5 √n
31.049092737491
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
-28856560
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 28856561 can be divided by 4 positive divisors.
The sum of these divisors (counting 28856561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110000101000011110001
3
Ternary
2000022001202112
4
Quaternary
1232011003301
5
Quinary
24341402221
6
Senary
2510255105
8
Octal
156050361
10
Decimal
28856561
12
Duodecimal
97b7495
16
Hexadecimal
1b850f1
20
Vigesimal
907181
36
Base36
h6hv5
md5
0f309eda61519a44b474d651a4799c13
sha1
d814bd2bf7f1d95f7dbe646ffe33c5931663cc6e
sha256
20cd391920c5555dcaf8af6a732a893d25e66867c083bfb25609efd132082ec7
sha512
caa615dec837ab9ca9552b5bd7e127f060fcc74548aa07b9f1a1af70a6301ef6e4404c894696d5db426f578d2a38ff2861d00386a655854da5d2273773b7e16c
ripemd-160
3642b5bfe6013a10948962135f19979e74aa1ab4
Diameter
57713122
Circumference
181311120.09093
Area
2.6160076984411E+15
Volume
1.0065198096872E+23
Surface area
1.0464030793765E+16
Circumference
181311120.09093
Perimeter
115426244
Area
832701112746721
Diagonal
40809339.929647
Surface area
4996206676480326
Volume
2.4028890454744E+22
Space diagonal
49981029.783711
Perimeter
86569683
Area
3.6057015869912E+14
Altitude
24990514.891855
Surface area
3.6057015869912E+14
Volume
2.8318318974897E+21
Height
13603113.309882