28931789 is an odd 8-digits prime number following 28931788
and preceding 28931790 . In scientific notation, it is written as 2.8931789 × 10^7.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 28931788 positive integers (up to 28931789) that are relatively prime to 28931789.
28931789 has 2 divisors, whose sum is 28931790
The reverse of 28931789 is 98713982
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 47 Digital Root 2
Name
twenty-eight million nine hundred thirty-one thousand seven hundred eighty-nine
Scientific notation
2.8931789 × 10^7
Engineering notation
2.8931789 × 10^6
Prime Factorization
28931789
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28931789 Product of the distinct prime numbers
The prime factorization of 28931789 is 28931789.
Since it has a total of 1 prime factors.
3 , 8 , 63 , 97 , 603 , 49 , 7279 , 6060 , 3654 , 44181 , 309331 , 521726 , 5519677 , 4067099 , 56493422 , 95505590 , 28633747 , 828446091 , 2083044182 , 4440313163
n×2
57863578
n×3
86795367
n×4
115727156
n×5
144658945
n÷2
14465894.5
n÷3
9643929.6666667
n÷3
7232947.25
n÷5
5786357.8
n2
837048414740521
n3
2.4217308118057E+22
n4
7.0065004861962E+29
n5
2.0271059369503E+37
2 √n5378.8278462877
3 √n306.99061322967
4 √n73.340492541895
5 √n31.065264652459
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28931790 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14465895 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5378.8279392448 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999308719 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931789 can be divided by 2 positive divisors.
The sum of these divisors (counting 28931789) is 28931790, the average is 14465895.
Base
System
Value
2
Binary
1101110010111011011001101
3
Ternary
2000102212221202
4
Quaternary
1232113123031
5
Quinary
24401304124
6
Senary
2512035245
8
Octal
156273315
10
Decimal
28931789
12
Duodecimal
9832b25
16
Hexadecimal
1b976cd
20
Vigesimal
90g999
36
Base36
h83wt
md5
f9711d5801f10d8b4cbaac0b97c24686
sha1
f2094684d1a5837b2d2189ddcd78dfd695b68b9f
sha256
e200fa14632a38832e6397375d17de488e22b7c18b7f74883d51c376f04ba395
sha512
0a0b170c50936006bf466050ec6fe92a0210f8a628cf26e7a9bd3a32c8e81ca78bc3fa85de29697852432d73b5621be81eeaf85f125ad740d55ab356c56e3538
ripemd-160
4792c86aa5ec051dd2059bec37f5809e4a105d6f
Diameter
57863578
Circumference
181783791.55522
Area
2.6296651504478E+15
Volume
1.0144122303121E+23
Surface area
1.0518660601791E+16
Circumference
181783791.55522
Perimeter
115727156
Area
837048414740521
Diagonal
40915728.387517
Surface area
5022290488443126
Volume
2.4217308118057E+22
Space diagonal
50111328.501862
Perimeter
86795367
Area
3.6245259568139E+14
Altitude
25055664.250931
Surface area
3.6245259568139E+14
Volume
2.8540371320604E+21
Height
13638576.129172