28888945 is an odd 8-digits composite number following 28888944
and preceding 28888946 . In scientific notation, it is written as 2.8888945 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 23111152 positive integers (up to 28888945) that are relatively prime to 28888945.
28888945 has 4 divisors, whose sum is 34666740
The reverse of 28888945 is 54988882
Previous prime number is 5
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 forty-five
Scientific notation
2.8888945 × 10^7
Engineering notation
2.8888945 × 10^6
Prime Factorization
5 × 5777789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28888945
Product of the distinct prime numbers
The prime factorization of 28888945 is 5 × 5777789.
Since it has a total of 2 prime factors.
8 , 5 , 95 , 54 , 387 , 631 , 1196 , 9554 , 45324 , 32728 , 800706 , 640408 , 9147565 , 9727450 , 15608570 , 38725632 , 235019338 , 851596349 , 5348647444 , 8241218032
n×2
57777890
n×3
86666835
n×4
115555780
n×5
144444725
n÷2
14444472.5
n÷3
9629648.3333333
n÷3
7222236.25
n÷5
5777789
n2
834571143213025
n3
2.4109879854868E+22
n4
6.965089930839E+29
n5
2.0121409993206E+37
2 √n
5374.8437186582
3 √n
306.83900140886
4 √n
73.313325655424
5 √n
31.056058520839
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
-28888944
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 28888945 can be divided by 4 positive divisors.
The sum of these divisors (counting 28888945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110001100111101110001
3
Ternary
2000100201011221
4
Quaternary
1232030331301
5
Quinary
24343421240
6
Senary
2511105041
8
Octal
156147561
10
Decimal
28888945
12
Duodecimal
9812181
16
Hexadecimal
1b8cf71
20
Vigesimal
90b275
36
Base36
h76up
md5
2429da389ddc84b2f2c1f44ec6c58954
sha1
66634ec2ab9bc3fcc10ad163bf03420af41103b5
sha256
9e14017f59a79f5a6a991f6c827e93f6ee74538a11c9e3ecd623693f265a78a5
sha512
49004197bdef9723f61eed5af5b8bf1c8c7831e5085f6826310d04820a12d5c910f94cb344c142ee639513a4745541e00b3f8aa0241b21679a9c9252f60f5f41
ripemd-160
06b89749694fa556c583842c2f22ae4eb207977d
Diameter
57777890
Circumference
181514594.76392
Area
2.6218825724161E+15
Volume
1.0099122857465E+23
Surface area
1.0487530289664E+16
Circumference
181514594.76392
Perimeter
115555780
Area
834571143213025
Diagonal
40855137.82165
Surface area
5007426859278150
Volume
2.4109879854868E+22
Space diagonal
50037120.517063
Perimeter
86666835
Area
3.6137990564395E+14
Altitude
25018560.258531
Surface area
3.6137990564395E+14
Volume
2.8413765898284E+21
Height
13618379.273883