28933991 is an odd 8-digits composite number following 28933990
and preceding 28933992 . In scientific notation, it is written as 2.8933991 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 28526400 positive integers (up to 28933991) that are relatively prime to 28933991.
28933991 has 4 divisors, whose sum is 29341584
The reverse of 28933991 is 19933982
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million nine hundred thirty-three thousand nine hundred ninety-one
Scientific notation
2.8933991 × 10^7
Engineering notation
2.8933991 × 10^6
Prime Factorization
71 × 407521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28933991
Product of the distinct prime numbers
The prime factorization of 28933991 is 71 × 407521.
Since it has a total of 2 prime factors.
8 , 9 , 11 , 84 , 648 , 633 , 399 , 7148 , 11876 , 85756 , 748444 , 723132 , 7901717 , 8884594 , 55034545 , 99978765 , 560908202 , 311454699 , 892660018 , 3046508740
n×2
57867982
n×3
86801973
n×4
115735964
n×5
144669955
n÷2
14466995.5
n÷3
9644663.6666667
n÷3
7233497.75
n÷5
5786798.2
n2
837175835188081
n3
2.4222838080749E+22
n4
7.0086337902286E+29
n5
2.0278774700877E+37
2 √n
5379.0325338299
3 √n
306.99840138939
4 √n
73.341887989265
5 √n
31.065737513852
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
-28933990
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 28933991 can be divided by 4 positive divisors.
The sum of these divisors (counting 28933991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111111101100111
3
Ternary
2000102222222022
4
Quaternary
1232113331213
5
Quinary
24401341431
6
Senary
2512053355
8
Octal
156277547
10
Decimal
28933991
12
Duodecimal
983425b
16
Hexadecimal
1b97f67
20
Vigesimal
90gejb
36
Base36
h85lz
md5
4e6ed9ffc36d1ef57ba66c40188697f6
sha1
e74f5381c7aa87799943dde3d677e3214216196b
sha256
8ef59554aa01dc81121689ce190adb34c020fe5e27f7f1dd5aa05390b991461e
sha512
47bc84dcf203bc21f17268836dc6dbe468b775c98404304c4ecac7b99cc5d67914aebf0aa85a08b90bb588272657e33b76574e7b30da0dc035c74264a3c7a098
ripemd-160
fa9f60585372671d6ae0695612ebb87257c60c6c
Diameter
57867982
Circumference
181797627.12927
Area
2.6300654535898E+15
Volume
1.0146438688477E+23
Surface area
1.0520261814359E+16
Circumference
181797627.12927
Perimeter
115735964
Area
837175835188081
Diagonal
40918842.485781
Surface area
5023055011128486
Volume
2.4222838080749E+22
Space diagonal
50115142.477741
Perimeter
86801973
Area
3.6250777035367E+14
Altitude
25057571.23887
Surface area
3.6250777035367E+14
Volume
2.8546888444136E+21
Height
13639614.161927