28931621 is an odd 8-digits prime number following 28931620
and preceding 28931622 . In scientific notation, it is written as 2.8931621 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 28931620 positive integers (up to 28931621) that are relatively prime to 28931621.
28931621 has 2 divisors, whose sum is 28931622
The reverse of 28931621 is 12613982
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
twenty-eight million nine hundred thirty-one thousand six hundred twenty-one
Scientific notation
2.8931621 × 10^7
Engineering notation
2.8931621 × 10^6
Prime Factorization
28931621
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28931621 Product of the distinct prime numbers
The prime factorization of 28931621 is 28931621.
Since it has a total of 1 prime factors.
6 , 1 , 15 , 74 , 763 , 430 , 7689 , 2929 , 49946 , 1215 , 296181 , 569504 , 2507575 , 3821440 , 86534168 , 92969161 , 342844898 , 642393392 , 1772333964 , 6570318819
n×2
57863242
n×3
86794863
n×4
115726484
n×5
144658105
n÷2
14465810.5
n÷3
9643873.6666667
n÷3
7232905.25
n÷5
5786324.2
n2
837038693687641
n3
2.4216886248106E+22
n4
7.0063377473031E+29
n5
2.0270470830297E+37
2 √n5378.8122294797
3 √n306.99001902143
4 √n73.340386073975
5 √n31.065228574658
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28931622 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14465811 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5378.812322437 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999308715 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931621 can be divided by 2 positive divisors.
The sum of these divisors (counting 28931621) is 28931622, the average is 14465811.
Base
System
Value
2
Binary
1101110010111011000100101
3
Ternary
2000102212201112
4
Quaternary
1232113120211
5
Quinary
24401302441
6
Senary
2512034405
8
Octal
156273045
10
Decimal
28931621
12
Duodecimal
9832a05
16
Hexadecimal
1b97625
20
Vigesimal
90g911
36
Base36
h83s5
md5
41164fc4a09aa3004920e10343663c69
sha1
d1930da97c6fb994666ab8c50c1413a28296d2a1
sha256
eff3925b214177ceb2642ae78552796277aac1ac6fb179374ba5732caad31d98
sha512
6760db03a5439c0bde7831303b3a3a1e3734a1f84ccabd05d99ae54b89711577a325d6acde5e68ebfc7d6aea936c4f7616f5368d8edb6cfb32aa93027f4328ce
ripemd-160
98cdd7b75e97a949c44c135f12738557fbdeea79
Diameter
57863242
Circumference
181782735.98009
Area
2.6296346108595E+15
Volume
1.0143945590649E+23
Surface area
1.0518538443438E+16
Circumference
181782735.98009
Perimeter
115726484
Area
837038693687641
Diagonal
40915490.799638
Surface area
5022232162125846
Volume
2.4216886248106E+22
Space diagonal
50111037.517327
Perimeter
86794863
Area
3.6244838634202E+14
Altitude
25055518.758663
Surface area
3.6244838634202E+14
Volume
2.8539874142098E+21
Height
13638496.933213