28011645 is an odd 8-digits composite number following 28011644
and preceding 28011646 . In scientific notation, it is written as 2.8011645 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 14939520 positive integers (up to 28011645) that are relatively prime to 28011645.
28011645 has 12 divisors, whose sum is 48553596
The reverse of 28011645 is 54611082
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million eleven thousand six hundred forty-five
Scientific notation
2.8011645 × 10^7
Engineering notation
2.8011645 × 10^6
Prime Factorization
5 × 3 × 3 × 622481
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9337215
Product of the distinct prime numbers
The prime factorization of 28011645 is 5 × 3 × 3 × 622481.
Since it has a total of 4 prime factors.
8 , 1 , 51 , 62 , 573 , 79 , 3197 , 3151 , 73787 , 52937 , 808643 , 165124 , 7868196 , 9662616 , 35462148 , 21138163 , 718225906 , 794332978 , 1160448350 , 305877920
n×2
56023290
n×3
84034935
n×4
112046580
n×5
140058225
n÷2
14005822.5
n÷3
9337215
n÷3
7002911.25
n÷5
5602329
n2
784652255606025
n3
2.1979400432485E+22
n4
6.1567916222762E+29
n5
1.7246186126218E+37
2 √n
5292.6028568182
3 √n
303.70098787515
4 √n
72.750277365919
5 √n
30.865102443005
1 , 3 , 5 , 9 , 15 , 45 , 622481 , 1867443 , 3112405 , 5602329 , 9337215 , 28011645
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28011644
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28011645 can be divided by 12 positive divisors.
The sum of these divisors (counting 28011645) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101010110110110001111101
3
Ternary
1221201010202100
4
Quaternary
1222312301331
5
Quinary
24132333040
6
Senary
2440215313
8
Octal
152666175
10
Decimal
28011645
12
Duodecimal
946a539
16
Hexadecimal
1ab6c7d
20
Vigesimal
8f1925
36
Base36
godx9
md5
46396e2cd3199e44d82c8921cac8c0d2
sha1
e64df41f3dfaf2af766c88869e3497d20dd68e53
sha256
56ad5ca71207aa70c69a3cc04fa48829d5bf13be3e87d1de83a12926887b081b
sha512
c3f710c44836c6d3d8dda4b9c989ad779007acb6469e1894a4cc742c45c8f77ef5e79788c3de2a84aee447aff48cec3481869b59b56c239b58011fc669711f14
ripemd-160
75e5e65f25195382790b9a97a5cffa402b9546b6
Diameter
56023290
Circumference
176002356.29393
Area
2.4650577618345E+15
Volume
9.2067097238672E+22
Surface area
9.8602310473382E+15
Circumference
176002356.29393
Perimeter
112046580
Area
784652255606025
Diagonal
39614448.26338
Surface area
4707913533636150
Volume
2.1979400432485E+22
Space diagonal
48517592.343583
Perimeter
84034935
Area
3.3976439324579E+14
Altitude
24258796.171791
Surface area
3.3976439324579E+14
Volume
2.5902971820375E+21
Height
13204816.087793