28871251 is an odd 8-digits composite number following 28871250
and preceding 28871252 . In scientific notation, it is written as 2.8871251 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 28837600 positive integers (up to 28871251) that are relatively prime to 28871251.
28871251 has 4 divisors, whose sum is 28904904
The reverse of 28871251 is 15217882
Previous prime number is 881
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million eight hundred seventy-one thousand two hundred fifty-one
Scientific notation
2.8871251 × 10^7
Engineering notation
2.8871251 × 10^6
Prime Factorization
881 × 32771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28871251
Product of the distinct prime numbers
The prime factorization of 28871251 is 881 × 32771.
Since it has a total of 2 prime factors.
4 , 10 , 9 , 69 , 425 , 608 , 9422 , 5552 , 96290 , 85533 , 163012 , 644340 , 4164171 , 1370120 , 85696279 , 65824187 , 467025678 , 946898102 , 2792399401 , 1424560621
n×2
57742502
n×3
86613753
n×4
115485004
n×5
144356255
n÷2
14435625.5
n÷3
9623750.3333333
n÷3
7217812.75
n÷5
5774250.2
n2
833549134305001
n3
2.4065606277352E+22
n4
6.9480415930062E+29
n5
2.0059865279012E+37
2 √n
5373.197465197
3 √n
306.776344014
4 √n
73.302097276934
5 √n
31.052253324255
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
-28871250
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 28871251 can be divided by 4 positive divisors.
The sum of these divisors (counting 28871251) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110001000101001010011
3
Ternary
2000022210220121
4
Quaternary
1232020221103
5
Quinary
24342340001
6
Senary
2510451111
8
Octal
156105123
10
Decimal
28871251
12
Duodecimal
9803a97
16
Hexadecimal
1b88a53
20
Vigesimal
908i2b
36
Base36
h6t77
md5
e79cd9af3f59337df48bdc6d7f99d268
sha1
8df66449296d8b32c8c68b9937461961a9e698aa
sha256
eb85c3a8b7c2fc268de8abbfe83b5aa14749d775e6e600b0656c631b8e5c578a
sha512
dcb56968f005db8ab9fb361a7d3b91b36c21f7f5bc9c568ec4b275fedaa26579080172def45db25b3824bfdcffa6b968611d45d54967dae2bec7f793a4586000
ripemd-160
f3702315c76720ee824190fe205cb967980f4a1c
Diameter
57742502
Circumference
181403420.08309
Area
2.6186718367387E+15
Volume
1.0080577584682E+23
Surface area
1.0474687346955E+16
Circumference
181403420.08309
Perimeter
115485004
Area
833549134305001
Diagonal
40830114.726878
Surface area
5001294805830006
Volume
2.4065606277352E+22
Space diagonal
50006473.610074
Perimeter
86613753
Area
3.6093736280533E+14
Altitude
25003236.805037
Surface area
3.6093736280533E+14
Volume
2.8361588986802E+21
Height
13610038.242293