28931709 is an odd 8-digits composite number following 28931708
and preceding 28931710 . In scientific notation, it is written as 2.8931709 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19287804 positive integers (up to 28931709) that are relatively prime to 28931709.
28931709 has 4 divisors, whose sum is 38575616
The reverse of 28931709 is 90713982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million nine hundred thirty-one thousand seven hundred nine
Scientific notation
2.8931709 × 10^7
Engineering notation
2.8931709 × 10^6
Prime Factorization
3 × 9643903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28931709
Product of the distinct prime numbers
The prime factorization of 28931709 is 3 × 9643903.
Since it has a total of 2 prime factors.
5 , 4 , 1 , 66 , 477 , 992 , 8077 , 6652 , 14171 , 93308 , 430183 , 838051 , 8674608 , 9566707 , 24550748 , 95447446 , 939237574 , 797652090 , 6793168215 , 2988957917
n×2
57863418
n×3
86795127
n×4
115726836
n×5
144658545
n÷2
14465854.5
n÷3
9643903
n÷3
7232927.25
n÷5
5786341.8
n2
837043785660681
n3
2.4217107226993E+22
n4
7.0064229911316E+29
n5
2.0270779111033E+37
2 √n
5378.8204097181
3 √n
306.99033027365
4 √n
73.340441842943
5 √n
31.065247472575
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
-28931708
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 28931709 can be divided by 4 positive divisors.
The sum of these divisors (counting 28931709) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010111011001111101
3
Ternary
2000102212211210
4
Quaternary
1232113121331
5
Quinary
24401303314
6
Senary
2512035033
8
Octal
156273175
10
Decimal
28931709
12
Duodecimal
9832a79
16
Hexadecimal
1b9767d
20
Vigesimal
90g959
36
Base36
h83ul
md5
50a7246520cccf990d3df0b6ba89a1ba
sha1
c8bb46c29fe9ce11e22501fc559de38045cbc7bc
sha256
2f646fb0f6ffc78ca6c19c06f3bedf91dd9397247da442432ec7089f31031f25
sha512
9abde7bc3e1acb22e13ced7ce15a76316c31b033783d78e87efd34f04263111ffdaef4442a0198e81230bc42f0134f70ad14cf770200bd7c83d480de32900af9
ripemd-160
373c16e6a9f0426c9ef3835b25f2f4e09d31b83e
Diameter
57863418
Circumference
181783288.9004
Area
2.6296506077646E+15
Volume
1.0144038154069E+23
Surface area
1.0518602431058E+16
Circumference
181783288.9004
Perimeter
115726836
Area
837043785660681
Diagonal
40915615.250432
Surface area
5022262713964086
Volume
2.4217107226993E+22
Space diagonal
50111189.937798
Perimeter
86795127
Area
3.6245059123102E+14
Altitude
25055594.968899
Surface area
3.6245059123102E+14
Volume
2.8540134568214E+21
Height
13638538.416811