28305993 is an odd 8-digits composite number following 28305992
and preceding 28305994 . In scientific notation, it is written as 2.8305993 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 18870660 positive integers (up to 28305993) that are relatively prime to 28305993.
28305993 has 4 divisors, whose sum is 37741328
The reverse of 28305993 is 39950382
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million three hundred five thousand nine hundred ninety-three
Scientific notation
2.8305993 × 10^7
Engineering notation
2.8305993 × 10^6
Prime Factorization
3 × 9435331
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28305993
Product of the distinct prime numbers
The prime factorization of 28305993 is 3 × 9435331.
Since it has a total of 2 prime factors.
1 , 1 , 25 , 77 , 446 , 976 , 9636 , 8405 , 46730 , 7257 , 632739 , 961985 , 7015984 , 2177999 , 42984445 , 32634198 , 935188503 , 557988206 , 1577073933 , 1260575674
n×2
56611986
n×3
84917979
n×4
113223972
n×5
141529965
n÷2
14152996.5
n÷3
9435331
n÷3
7076498.25
n÷5
5661198.6
n2
801229239716049
n3
2.2679589250798E+22
n4
6.4196829457596E+29
n5
1.8171550052489E+37
2 √n
5320.3376772532
3 √n
304.76105265953
4 √n
72.940644891948
5 √n
30.929697960706
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
-28305992
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 28305993 can be divided by 4 positive divisors.
The sum of these divisors (counting 28305993) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111110101001001001
3
Ternary
1222021002112010
4
Quaternary
1223332221021
5
Quinary
24221242433
6
Senary
2450410133
8
Octal
153765111
10
Decimal
28305993
12
Duodecimal
9590949
16
Hexadecimal
1afea49
20
Vigesimal
8gi4jd
36
Base36
gup1l
md5
3e998c79f72a8a92ce5e8e7f0bb35a7a
sha1
19c3ae3788dbfffea57e2c432718601f4235ab21
sha256
afb6b25cbd9771d23a7752288946a7afe14b4b9e91084e6350ae6236bc450259
sha512
32bae1184e37ad67a550fca3d3c2a50165fed55ae9aedcb39b7bbaca78b2b34ad35e62d02085ac420e7b8d8d7af1bfb918e6360c0c350aa7071c5f0c6dad79b8
ripemd-160
9bbd8403eb3237cf41e0af203013bee7798ce1a4
Diameter
56611986
Circumference
177851799.32273
Area
2.5171358933333E+15
Volume
9.5000041302321E+22
Surface area
1.0068543573333E+16
Circumference
177851799.32273
Perimeter
113223972
Area
801229239716049
Diagonal
40030719.197038
Surface area
4807375438296294
Volume
2.2679589250798E+22
Space diagonal
49027418.034689
Perimeter
84917979
Area
3.469424379245E+14
Altitude
24513709.017344
Surface area
3.469424379245E+14
Volume
2.6728152256274E+21
Height
13343573.065679