28161872 is an even 8-digits composite number following 28161871
and preceding 28161873 . In scientific notation, it is written as 2.8161872 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 10 positive divisors.
There are 14080928 positive integers (up to 28161872) that are relatively prime to 28161872.
28161872 has 10 divisors, whose sum is 54563658
The reverse of 28161872 is 27816182
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million one hundred sixty-one thousand eight hundred seventy-two
Scientific notation
2.8161872 × 10^7
Engineering notation
2.8161872 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1760117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3520234
Product of the distinct prime numbers
The prime factorization of 28161872 is 2 × 2 × 2 × 2 × 1760117.
Since it has a total of 5 prime factors.
9 , 5 , 87 , 40 , 652 , 736 , 1418 , 278 , 12299 , 4 , 915678 , 991591 , 8201884 , 6724154 , 90640842 , 68763393 , 178168047 , 824803829 , 9030633505 , 2818268611
n×2
56323744
n×3
84485616
n×4
112647488
n×5
140809360
n÷2
14080936
n÷3
9387290.6666667
n÷3
7040468
n÷5
5632374.4
n2
793091034544384
n3
2.2334928199187E+22
n4
6.2899338907468E+29
n5
1.7713631311967E+37
2 √n
5306.7760457739
3 √n
304.24293830907
4 √n
72.847622101026
5 √n
30.898137680979
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28161871
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28161872 can be divided by 10 positive divisors.
The sum of these divisors (counting 28161872) is 1, the average is 0.1.
Base
System
Value
2
Binary
1101011011011011101010000
3
Ternary
1221222202211022
4
Quaternary
1223123131100
5
Quinary
24202134442
6
Senary
2443335012
8
Octal
153333520
10
Decimal
28161872
12
Duodecimal
9521468
16
Hexadecimal
1adb750
20
Vigesimal
8g04dc
36
Base36
grlu8
md5
7bd1ae7f2a9a6f4ec277e541260db2aa
sha1
ba6db3e2b185b59c8dce0643e82f9ea197a01d48
sha256
b21d59909a2b1311f1ef3ea4ef59aeaf2243e5933e9735856e6b859729433ffb
sha512
eedfca214c6055faa5c36834cb72e70932172256a0cfc7f9ec44c4fa1fd767ec69cd56046b25697930d7f5a81369604d672ea636cbe37bbf934ae54541d26976
ripemd-160
38b5148513b1ca76d4c6d8d7a9239b26c8b361ac
Diameter
56323744
Circumference
176946260.37307
Area
2.4915689677526E+15
Volume
9.355632846536E+22
Surface area
9.9662758710103E+15
Circumference
176946260.37307
Perimeter
112647488
Area
793091034544384
Diagonal
39826901.324215
Surface area
4758546207266304
Volume
2.2334928199187E+22
Space diagonal
48777793.140251
Perimeter
84485616
Area
3.4341849171456E+14
Altitude
24388896.570126
Surface area
3.4341849171456E+14
Volume
2.6321965311599E+21
Height
13275633.774738