28931139 is an odd 8-digits composite number following 28931138
and preceding 28931140 . In scientific notation, it is written as 2.8931139 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 19287420 positive integers (up to 28931139) that are relatively prime to 28931139.
28931139 has 6 divisors, whose sum is 41789436
The reverse of 28931139 is 93113982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million nine hundred thirty-one thousand one hundred thirty-nine
Scientific notation
2.8931139 × 10^7
Engineering notation
2.8931139 × 10^6
Prime Factorization
3 × 3 × 3214571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
9643713
Product of the distinct prime numbers
The prime factorization of 28931139 is 3 × 3 × 3214571.
Since it has a total of 3 prime factors.
2 , 8 , 30 , 44 , 809 , 901 , 5560 , 7517 , 48178 , 34731 , 843770 , 383513 , 5578160 , 1223621 , 50329433 , 42630959 , 459218255 , 150954861 , 9981882234 , 6542062176
n×2
57862278
n×3
86793417
n×4
115724556
n×5
144655695
n÷2
14465569.5
n÷3
9643713
n÷3
7232784.75
n÷5
5786227.8
n2
837010803837321
n3
2.4215675910319E+22
n4
7.005870857404E+29
n5
2.026878235916E+37
2 √n
5378.7674238621
3 √n
306.9883141969
4 √n
73.340080609869
5 √n
31.0651250648
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28931138
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931139 can be divided by 6 positive divisors.
The sum of these divisors (counting 28931139) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101110010111010001000011
3
Ternary
2000102212001200
4
Quaternary
1232113101003
5
Quinary
24401244024
6
Senary
2512032243
8
Octal
156272103
10
Decimal
28931139
12
Duodecimal
9832683
16
Hexadecimal
1b97443
20
Vigesimal
90g7gj
36
Base36
h83er
md5
2fa4af635a9d135ae8a904564f8861fb
sha1
2174277d174c85a1f1203b945ded5a3467572f4e
sha256
db24d03f911ac10a65ec9f7b20b8898b3298c08f81cddeacd97df91cccde7565
sha512
1420d5def2e1dda43b158d7ed953ea4cc3ce642423277490d2364eaa4621d1c44adceb4abab2d800f56174d247e0d70e38f57150fe264b164a420e8ef944d9f3
ripemd-160
aee46116044544b108c738ed4b3519555d0f3d61
Diameter
57862278
Circumference
181779707.48477
Area
2.6295469923106E+15
Volume
1.0143438605543E+23
Surface area
1.0518187969242E+16
Circumference
181779707.48477
Perimeter
115724556
Area
837010803837321
Diagonal
40914809.148701
Surface area
5022064823023926
Volume
2.4215675910319E+22
Space diagonal
50110202.668837
Perimeter
86793417
Area
3.6243630968258E+14
Altitude
25055101.334419
Surface area
3.6243630968258E+14
Volume
2.8538447745337E+21
Height
13638269.716234