28133385 is an odd 8-digits composite number following 28133384
and preceding 28133386 . In scientific notation, it is written as 2.8133385 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12103680 positive integers (up to 28133385) that are relatively prime to 28133385.
28133385 has 16 divisors, whose sum is 36315648
The reverse of 28133385 is 58333182
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million one hundred thirty-three thousand three hundred eighty-five
Scientific notation
2.8133385 × 10^7
Engineering notation
2.8133385 × 10^6
Prime Factorization
15 × 17 × 7 × 15761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28133385
Product of the distinct prime numbers
The prime factorization of 28133385 is 15 × 17 × 7 × 15761.
Since it has a total of 4 prime factors.
2 , 4 , 72 , 36 , 514 , 346 , 1596 , 9137 , 86395 , 64040 , 133893 , 12347 , 870459 , 6442854 , 89797581 , 59203078 , 580184136 , 52929112 , 4599646931 , 4156570210
n×2
56266770
n×3
84400155
n×4
112533540
n×5
140666925
n÷2
14066692.5
n÷3
9377795
n÷3
7033346.25
n÷5
5626677
n2
791487351558225
n3
2.2267218384018E+22
n4
6.2645222767665E+29
n5
1.7624221705335E+37
2 √n
5304.0913453673
3 √n
304.14031856171
4 √n
72.829192947384
5 √n
30.89188417903
1 , 7 , 15 , 17 , 105 , 119 , 255 , 1785 , 15761 , 110327 , 236415 , 267937 , 1654905 , 1875559 , 4019055 , 28133385
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28133384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28133385 can be divided by 16 positive divisors.
The sum of these divisors (counting 28133385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011010100100000001001
3
Ternary
1221221022202020
4
Quaternary
1223110200021
5
Quinary
24200232020
6
Senary
2442555053
8
Octal
153244011
10
Decimal
28133385
12
Duodecimal
9508a89
16
Hexadecimal
1ad4809
20
Vigesimal
8fgd95
36
Base36
gqzux
md5
519a1884a91a85dad6f0d19bde891991
sha1
195d71deac951166cfa47024d860e4ed613003f9
sha256
3e8e56477606059ca368dcd0bc57459725952724a2b1998df4684294f63e602a
sha512
4a8623ce510a9f8abc99f4a475ce1c5c4a29501a3f91c501bddd318cee615656bccbb4cf14be56daf42d97246cc4d3a65920c3ed1f727db300ae40d0ec6e71e0
ripemd-160
6f0ecfca75edb86f7bf1d383aa8dc782e00cf143
Diameter
56266770
Circumference
176767271.27323
Area
2.4865308490646E+15
Volume
9.3272706254814E+22
Surface area
9.9461233962582E+15
Circumference
176767271.27323
Perimeter
112533540
Area
791487351558225
Diagonal
39786614.622464
Surface area
4748924109349350
Volume
2.2267218384018E+22
Space diagonal
48728452.208896
Perimeter
84400155
Area
3.4272407661174E+14
Altitude
24364226.104448
Surface area
3.4272407661174E+14
Volume
2.6242168529168E+21
Height
13262204.874155