28161761 is an odd 8-digits composite number following 28161760
and preceding 28161762 . In scientific notation, it is written as 2.8161761 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28138752 positive integers (up to 28161761) that are relatively prime to 28161761.
28161761 has 4 divisors, whose sum is 28184772
The reverse of 28161761 is 16716182
Previous prime number is 1297
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million one hundred sixty-one thousand seven hundred sixty-one
Scientific notation
2.8161761 × 10^7
Engineering notation
2.8161761 × 10^6
Prime Factorization
1297 × 21713
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28161761
Product of the distinct prime numbers
The prime factorization of 28161761 is 1297 × 21713.
Since it has a total of 2 prime factors.
5 , 4 , 49 , 40 , 199 , 710 , 1897 , 184 , 32064 , 74338 , 269624 , 583356 , 166351 , 3643933 , 98159332 , 86456406 , 425080997 , 117039850 , 8691145049 , 7462705011
n×2
56323522
n×3
84485283
n×4
112647044
n×5
140808805
n÷2
14080880.5
n÷3
9387253.6666667
n÷3
7040440.25
n÷5
5632352.2
n2
793084782621121
n3
2.2334664100913E+22
n4
6.2898347242519E+29
n5
1.7713282223388E+37
2 √n
5306.7655874365
3 √n
304.2425385841
4 √n
72.847550318706
5 √n
30.898113323943
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
-28161760
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 28161761 can be divided by 4 positive divisors.
The sum of these divisors (counting 28161761) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011011011100001
3
Ternary
1221222202200012
4
Quaternary
1223123123201
5
Quinary
24202134021
6
Senary
2443334305
8
Octal
153333341
10
Decimal
28161761
12
Duodecimal
9521395
16
Hexadecimal
1adb6e1
20
Vigesimal
8g0481
36
Base36
grlr5
md5
eb9c29b7ba9e680d39f0a7df5eca6f70
sha1
90f49d21e68912a1f56de9d8ddcc2ff81dcac2a5
sha256
53dc8ba1c938bcb33cada3d92af8d3f1f5c7e55ff1dec9b4352f3a08f417c096
sha512
e12457b9168d7fb81551727f59d1bd8339994cad5085104177ef3f4a5c4be3c2799a0d9bf4ee30a9443ec8843db7fc73f040942b9b5bb96177f2e48d7a1b4004
ripemd-160
bf23ef987b17c78d952de027434a6139eef9b043
Diameter
56323522
Circumference
176945562.9395
Area
2.4915493267564E+15
Volume
9.3555222213098E+22
Surface area
9.9661973070255E+15
Circumference
176945562.9395
Perimeter
112647044
Area
793084782621121
Diagonal
39826744.34651
Surface area
4758508695726726
Volume
2.2334664100913E+22
Space diagonal
48777600.882612
Perimeter
84485283
Area
3.4341578455238E+14
Altitude
24388800.441306
Surface area
3.4341578455238E+14
Volume
2.6321654068799E+21
Height
13275581.448837