28291261 is an odd 8-digits composite number following 28291260
and preceding 28291262 . In scientific notation, it is written as 2.8291261 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 28280124 positive integers (up to 28291261) that are relatively prime to 28291261.
28291261 has 4 divisors, whose sum is 28302400
The reverse of 28291261 is 16219282
Previous prime number is 3919
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million two hundred ninety-one thousand two hundred sixty-one
Scientific notation
2.8291261 × 10^7
Engineering notation
2.8291261 × 10^6
Prime Factorization
3919 × 7219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28291261
Product of the distinct prime numbers
The prime factorization of 28291261 is 3919 × 7219.
Since it has a total of 2 prime factors.
5 , 5 , 51 , 72 , 143 , 563 , 6679 , 2185 , 86535 , 7622 , 578862 , 685613 , 8056132 , 9472664 , 76097903 , 91385965 , 588971382 , 556879656 , 9747902184 , 188402221
n×2
56582522
n×3
84873783
n×4
113165044
n×5
141456305
n÷2
14145630.5
n÷3
9430420.3333333
n÷3
7072815.25
n÷5
5658252.2
n2
800395448970121
n3
2.2644196550026E+22
n4
6.4063287473208E+29
n5
1.8124311864226E+37
2 √n
5318.9529984763
3 √n
304.7081719974
4 √n
72.931152455424
5 √n
30.926477786099
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
-28291260
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 28291261 can be divided by 4 positive divisors.
The sum of these divisors (counting 28291261) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111011000010111101
3
Ternary
1222020100022111
4
Quaternary
1223323002331
5
Quinary
24220310021
6
Senary
2450214021
8
Octal
153730275
10
Decimal
28291261
12
Duodecimal
9584311
16
Hexadecimal
1afb0bd
20
Vigesimal
8gg831
36
Base36
gudod
md5
d8247892731ee642c72206e423af1b1c
sha1
6deab75a330a28681f658310eb5763af234398c6
sha256
a0a20bfbe5bdab299e294a87b6f0575da22158705e3f430bebc5499a4d485c0b
sha512
5a6eb146848f7ac1bcd6b9e7a5d233f3db054fa1448141d4ffaf3f761f13c8759d163fd51430b5d5f7e08ccfa088e259f4a79089b15f97c689a0ad21f81d813c
ripemd-160
03e7f44003966c7dbeca2260ab3deb48192f9d92
Diameter
56582522
Circumference
177759235.43678
Area
2.5145164624512E+15
Volume
9.4851788704006E+22
Surface area
1.0058065849805E+16
Circumference
177759235.43678
Perimeter
113165044
Area
800395448970121
Diagonal
40009885.002837
Surface area
4802372693820726
Volume
2.2644196550026E+22
Space diagonal
49001901.462192
Perimeter
84873783
Area
3.4658139594079E+14
Altitude
24500950.731096
Surface area
3.4658139594079E+14
Volume
2.6686441558407E+21
Height
13336628.334279