28805225 is an odd 8-digits composite number following 28805224
and preceding 28805226 . In scientific notation, it is written as 2.8805225 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 21688320 positive integers (up to 28805225) that are relatively prime to 28805225.
28805225 has 12 divisors, whose sum is 37820124
The reverse of 28805225 is 52250882
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million eight hundred five thousand two hundred twenty-five
Scientific notation
2.8805225 × 10^7
Engineering notation
2.8805225 × 10^6
Prime Factorization
5 × 5 × 17 × 67777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5761045
Product of the distinct prime numbers
The prime factorization of 28805225 is 5 × 5 × 17 × 67777.
Since it has a total of 4 prime factors.
3 , 2 , 51 , 81 , 772 , 251 , 6241 , 9139 , 5101 , 21732 , 76317 , 869422 , 4917310 , 5071462 , 36334505 , 25840592 , 925777230 , 420251170 , 1171020094 , 7642599159
n×2
57610450
n×3
86415675
n×4
115220900
n×5
144026125
n÷2
14402612.5
n÷3
9601741.6666667
n÷3
7201306.25
n÷5
5761045
n2
829740987300625
n3
2.3900875830917E+22
n4
6.8847010600662E+29
n5
1.9831536309294E+37
2 √n
5367.0499345544
3 √n
306.54230871979
4 √n
73.260152433327
5 √n
31.038037562302
1 , 5 , 17 , 25 , 85 , 425 , 67777 , 338885 , 1152209 , 1694425 , 5761045 , 28805225
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
-28805224
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 28805225 can be divided by 12 positive divisors.
The sum of these divisors (counting 28805225) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101101111000100001101001
3
Ternary
2000012110100012
4
Quaternary
1231320201221
5
Quinary
24333231400
6
Senary
2505221305
8
Octal
155704151
10
Decimal
28805225
12
Duodecimal
9791835
16
Hexadecimal
1b78869
20
Vigesimal
900d15
36
Base36
h5e95
md5
88012f21379008555141073f14775554
sha1
3e554d754d3ce4a7a59fa3e6abf32b6b02d8a9b1
sha256
23a3704bab3fdba813e8b22d31f41ad41eeec133b1fd92b6ccfe8f25a20e054b
sha512
513c510a2c60a822ae851af35904fef7cb62c365a3673abebd50ddf248f42fd5f7c34ff1b3a06ed88db53892b36b67e7a7c8089cdc4c4f06164c1aa928075ca1
ripemd-160
fab23234b92c7b93ee4b458579793a95e9a8b980
Diameter
57610450
Circumference
180988566.49
Area
2.606708190086E+15
Volume
1.0011575456636E+23
Surface area
1.0426832760344E+16
Circumference
180988566.49
Perimeter
115220900
Area
829740987300625
Diagonal
40736739.862209
Surface area
4978445923803750
Volume
2.3900875830917E+22
Space diagonal
49892113.223453
Perimeter
86415675
Area
3.5928838678176E+14
Altitude
24946056.611727
Surface area
3.5928838678176E+14
Volume
2.8167452293898E+21
Height
13578913.287403