28931455 is an odd 8-digits composite number following 28931454
and preceding 28931456 . In scientific notation, it is written as 2.8931455 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 19838688 positive integers (up to 28931455) that are relatively prime to 28931455.
28931455 has 4 divisors, whose sum is 29758104
The reverse of 28931455 is 55413982
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million nine hundred thirty-one thousand four hundred fifty-five
Scientific notation
2.8931455 × 10^7
Engineering notation
2.8931455 × 10^6
Prime Factorization
35 × 826613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28931455
Product of the distinct prime numbers
The prime factorization of 28931455 is 35 × 826613.
Since it has a total of 2 prime factors.
10 , 9 , 44 , 19 , 136 , 964 , 2673 , 6482 , 44356 , 6311 , 151575 , 168149 , 778516 , 8199345 , 59723020 , 40353842 , 441535790 , 66947043 , 770208084 , 8263894468
n×2
57862910
n×3
86794365
n×4
115725820
n×5
144657275
n÷2
14465727.5
n÷3
9643818.3333333
n÷3
7232863.75
n÷5
5786291
n2
837029088417025
n3
2.4216469405228E+22
n4
7.0061769485624E+29
n5
2.0269889310937E+37
2 √n
5378.7967985415
3 √n
306.98943188483
4 √n
73.340280873075
5 √n
31.06519292619
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
-28931454
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 28931455 can be divided by 4 positive divisors.
The sum of these divisors (counting 28931455) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111010101111111
3
Ternary
2000102212111101
4
Quaternary
1232113111333
5
Quinary
24401301310
6
Senary
2512033531
8
Octal
156272577
10
Decimal
28931455
12
Duodecimal
98328a7
16
Hexadecimal
1b9757f
20
Vigesimal
90g8cf
36
Base36
h83nj
md5
29696acf64678362025edf59734f4f09
sha1
3a534769c16aca799ebe1a12d1062b92a219622f
sha256
45f6f0b6755f356e9f937d0e2f0459cfd699cdf14866c5fdebc6bac3297fa645
sha512
be5bf6c0c88d478a63b967c533df16518d723811bf8a45b32418a2894491c4cad446e00fe708272191195745c880c0a5ffc9846be8cdbd5badcd8572525db96e
ripemd-160
1d89e485634711429722f46512a4ffdbcf1789bc
Diameter
57862910
Circumference
181781692.97133
Area
2.6296044350119E+15
Volume
1.0143770983913E+23
Surface area
1.0518417740048E+16
Circumference
181781692.97133
Perimeter
115725820
Area
837029088417025
Diagonal
40915256.040187
Surface area
5022174530502150
Volume
2.4216469405228E+22
Space diagonal
50110749.996893
Perimeter
86794365
Area
3.6244422713784E+14
Altitude
25055374.998446
Surface area
3.6244422713784E+14
Volume
2.8539382888056E+21
Height
13638418.680062