28938145 is an odd 8-digits composite number following 28938144
and preceding 28938146 . In scientific notation, it is written as 2.8938145 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 23070336 positive integers (up to 28938145) that are relatively prime to 28938145.
28938145 has 8 divisors, whose sum is 34846056
The reverse of 28938145 is 54183982
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million nine hundred thirty-eight thousand one hundred forty-five
Scientific notation
2.8938145 × 10^7
Engineering notation
2.8938145 × 10^6
Prime Factorization
5 × 293 × 19753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28938145
Product of the distinct prime numbers
The prime factorization of 28938145 is 5 × 293 × 19753.
Since it has a total of 3 prime factors.
7 , 2 , 30 , 99 , 458 , 492 , 728 , 7132 , 91887 , 75415 , 265752 , 398340 , 1375968 , 5650057 , 80918002 , 41926316 , 443654022 , 134524946 , 3143933700 , 660729806
n×2
57876290
n×3
86814435
n×4
115752580
n×5
144690725
n÷2
14469072.5
n÷3
9646048.3333333
n÷3
7234536.25
n÷5
5787629
n2
837416236041025
n3
2.4233272463909E+22
n4
7.0126595238512E+29
n5
2.0293335813684E+37
2 √n
5379.4186488876
3 √n
307.01309241876
4 √n
73.344520237627
5 √n
31.066629472818
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28938144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28938145 can be divided by 8 positive divisors.
The sum of these divisors (counting 28938145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110011000111110100001
3
Ternary
2000110012200011
4
Quaternary
1232120332201
5
Quinary
24402010040
6
Senary
2512124521
8
Octal
156307641
10
Decimal
28938145
12
Duodecimal
9836741
16
Hexadecimal
1b98fa1
20
Vigesimal
90h575
36
Base36
h88td
md5
e0fc5922dbe666a05edb03b0cbc51a30
sha1
617a978cb514d0746090444567c4d6afb0fa8b29
sha256
05fc0100755d7f9fe3bdfe2528dbb0dd975f1bdd747ceb4aeeee1f4589a1dda5
sha512
2ef1652cbccbe018fe8d206e5ad7264b169e80e711cd38ff918d59974430a3e7972b35c38fd51a42e7e8253cf6ec0aa8a653f3a90013631e2088468078238cf0
ripemd-160
9d8dd3add9891814dc82ce804dd131195221f762
Diameter
57876290
Circumference
181823727.48103
Area
2.6308206951433E+15
Volume
1.0150809432674E+23
Surface area
1.0523282780573E+16
Circumference
181823727.48103
Perimeter
115752580
Area
837416236041025
Diagonal
40924717.128919
Surface area
5024497416246150
Volume
2.4233272463909E+22
Space diagonal
50122337.416795
Perimeter
86814435
Area
3.6261186697654E+14
Altitude
25061168.708398
Surface area
3.6261186697654E+14
Volume
2.8559185482619E+21
Height
13641572.376306