28105893 is an odd 8-digits composite number following 28105892
and preceding 28105894 . In scientific notation, it is written as 2.8105893 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 18737244 positive integers (up to 28105893) that are relatively prime to 28105893.
28105893 has 4 divisors, whose sum is 29146880
The reverse of 28105893 is 39850182
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million one hundred five thousand eight hundred ninety-three
Scientific notation
2.8105893 × 10^7
Engineering notation
2.8105893 × 10^6
Prime Factorization
27 × 1040959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28105893
Product of the distinct prime numbers
The prime factorization of 28105893 is 27 × 1040959.
Since it has a total of 2 prime factors.
4 , 9 , 60 , 54 , 191 , 50 , 3246 , 1439 , 73420 , 7686 , 413414 , 102408 , 9390075 , 1390626 , 65482266 , 12643383 , 732256137 , 54710224 , 1937152125 , 6454064580
n×2
56211786
n×3
84317679
n×4
112423572
n×5
140529465
n÷2
14052946.5
n÷3
9368631
n÷3
7026473.25
n÷5
5621178.6
n2
789941221327449
n3
2.2202003442919E+22
n4
6.240071331523E+29
n5
1.7538277715615E+37
2 √n
5301.4991276053
3 √n
304.04121743188
4 √n
72.811394215503
5 √n
30.885844295513
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
-28105892
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 28105893 can be divided by 4 positive divisors.
The sum of these divisors (counting 28105893) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011001101110010100101
3
Ternary
1221212221001000
4
Quaternary
1223031302211
5
Quinary
24143342033
6
Senary
2442223513
8
Octal
153156245
10
Decimal
28105893
12
Duodecimal
94b4b99
16
Hexadecimal
1acdca5
20
Vigesimal
8fd4ed
36
Base36
gqen9
md5
4fe94f0c66ffce8da4797dac150f1a90
sha1
74d1a500a0d8d0f2000c49cf2d6658243c66e87f
sha256
6d84aeea24d392241d5d2e0e28c48ca1317d717eac895eb12543e5b623cfb7c8
sha512
45a8e81be1b50ad1ea7ebd93a83fc5fdb6242f52f9a4a74c71989db3d6c21c7d0ec31613853fd33655986d49ddac5ae8a938db12f062ae2f3feeeb6dc69b8564
ripemd-160
e60dc10d65287762c28d40e0b6ea5b500d50f239
Diameter
56211786
Circumference
176594533.94276
Area
2.4816735376901E+15
Volume
9.2999534548331E+22
Surface area
9.9266941507602E+15
Circumference
176594533.94276
Perimeter
112423572
Area
789941221327449
Diagonal
39747735.063207
Surface area
4739647327964694
Volume
2.2202003442919E+22
Space diagonal
48680834.668094
Perimeter
84317679
Area
3.4205458258304E+14
Altitude
24340417.334047
Surface area
3.4205458258304E+14
Volume
2.6165311984025E+21
Height
13249245.021069