28687130 is an even 8-digits composite number following 28687129
and preceding 28687131 . In scientific notation, it is written as 2.8687130 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 11474848 positive integers (up to 28687130) that are relatively prime to 28687130.
28687130 has 8 divisors, whose sum is 51636852
The reverse of 28687130 is 03178682
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million six hundred eighty-seven thousand one hundred thirty
Scientific notation
2.8687130 × 10^7
Engineering notation
2.8687130 × 10^6
Prime Factorization
2 × 5 × 2868713
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28687130
Product of the distinct prime numbers
The prime factorization of 28687130 is 2 × 5 × 2868713.
Since it has a total of 3 prime factors.
7 , 5 , 69 , 37 , 749 , 195 , 7171 , 4184 , 99303 , 85369 , 559341 , 635977 , 911037 , 1782486 , 89816269 , 12445198 , 638124000 , 643341243 , 1992775681 , 6505218148
n×2
57374260
n×3
86061390
n×4
114748520
n×5
143435650
n÷2
14343565
n÷3
9562376.6666667
n÷3
7171782.5
n÷5
5737426
n2
822951427636900
n3
2.3608114588305E+22
n4
6.7724905224961E+29
n5
1.9428331604261E+37
2 √n
5356.0367810537
3 √n
306.12281654892
4 √n
73.184949142933
5 √n
31.012545917196
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28687129
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28687130 can be divided by 8 positive divisors.
The sum of these divisors (counting 28687130) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011101100011010
3
Ternary
1222222110100022
4
Quaternary
1231123230122
5
Quinary
24320442010
6
Senary
2502510442
8
Octal
155335432
10
Decimal
28687130
12
Duodecimal
9735422
16
Hexadecimal
1b5bb1a
20
Vigesimal
8j5hga
36
Base36
h2v4q
md5
f153eb106ab4d745848233c8b3124b8b
sha1
1e9d3223e91fe4c137105eaf9b3e4a6f092942d6
sha256
1724d80d81df8da41340b260bd1440ee765bdde2c44cc12d14a586a4c39c2cfd
sha512
fc958db7fc8e9a279b17bbd8886c95cf2a239421e469a085ff9237647b0df8b3aeb482ec51f56bad20a7cfe4e7994880d7df2897f1e2ca47e0eadc2c64dc5c5e
ripemd-160
b99dc9ae012b3d1facd88bcec50ab9748ad7ca1f
Diameter
57374260
Circumference
180246553.72115
Area
2.5853781593253E+15
Volume
9.8889439140968E+22
Surface area
1.0341512637301E+16
Circumference
180246553.72115
Perimeter
114748520
Area
822951427636900
Diagonal
40569728.31156
Surface area
4937708565821400
Volume
2.3608114588305E+22
Space diagonal
49687566.683333
Perimeter
86061390
Area
3.5634842120711E+14
Altitude
24843783.341667
Surface area
3.5634842120711E+14
Volume
2.78224298607E+21
Height
13523242.77052