28888909 is an odd 8-digits composite number following 28888908
and preceding 28888910 . In scientific notation, it is written as 2.8888909 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 24761916 positive integers (up to 28888909) that are relatively prime to 28888909.
28888909 has 4 divisors, whose sum is 33015904
The reverse of 28888909 is 90988882
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty-eight million eight hundred eighty-eight thousand nine hundred nine
Scientific notation
2.8888909 × 10^7
Engineering notation
2.8888909 × 10^6
Prime Factorization
7 × 4126987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28888909
Product of the distinct prime numbers
The prime factorization of 28888909 is 7 × 4126987.
Since it has a total of 2 prime factors.
3 , 8 , 45 , 20 , 795 , 368 , 3377 , 9209 , 83759 , 31121 , 181117 , 78853 , 6016990 , 7680608 , 2156502 , 20348438 , 734488057 , 94512150 , 2452784438 , 2921638706
n×2
57777818
n×3
86666727
n×4
115555636
n×5
144444545
n÷2
14444454.5
n÷3
9629636.3333333
n÷3
7222227.25
n÷5
5777781.8
n2
834569063210281
n3
2.4109789721297E+22
n4
6.9650552126769E+29
n5
2.01212846219E+37
2 √n
5374.8403697226
3 √n
306.83887395285
4 √n
73.313302815537
5 √n
31.056050780725
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
-28888908
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 28888909 can be divided by 4 positive divisors.
The sum of these divisors (counting 28888909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110001100111101001101
3
Ternary
2000100201010121
4
Quaternary
1232030331031
5
Quinary
24343421114
6
Senary
2511104541
8
Octal
156147515
10
Decimal
28888909
12
Duodecimal
9812151
16
Hexadecimal
1b8cf4d
20
Vigesimal
90b259
36
Base36
h76tp
md5
992326e034ba27fcbd2bb5c79e528a2b
sha1
94c74ae20c486820bd2a616b3180cbd720761ebf
sha256
755aa08874887b3a0a3a06278a31f3680ca49160577ac97b0bbe2956c140c128
sha512
da6e1238e0891763eca5dcd2a12e8e247031f12c8b9e92431712649bb02db910660c699211d4f00e994f160002a4aae56b3955bea768fa004d1b6898fe5b1979
ripemd-160
bd397bc7b3622f2f87e0dfd174cffba6bf5c8d3f
Diameter
57777818
Circumference
181514368.56925
Area
2.6218760378947E+15
Volume
1.0099085102403E+23
Surface area
1.0487504151579E+16
Circumference
181514368.56925
Perimeter
115555636
Area
834569063210281
Diagonal
40855086.909962
Surface area
5007414379261686
Volume
2.4109789721297E+22
Space diagonal
50037058.163234
Perimeter
86666727
Area
3.6137900497634E+14
Altitude
25018529.081617
Surface area
3.6137900497634E+14
Volume
2.8413659674851E+21
Height
13618362.303321