28910909 is an odd 8-digits prime number following 28910908
and preceding 28910910 . In scientific notation, it is written as 2.8910909 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 28910908 positive integers (up to 28910909) that are relatively prime to 28910909.
28910909 has 2 divisors, whose sum is 28910910
The reverse of 28910909 is 90901982
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million nine hundred ten thousand nine hundred nine
Scientific notation
2.8910909 × 10^7
Engineering notation
2.8910909 × 10^6
Prime Factorization
28910909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28910909
Product of the distinct prime numbers
The prime factorization of 28910909 is 28910909.
Since it has a total of 1 prime factors.
3 , 7 , 32 , 39 , 997 , 126 , 8987 , 6310 , 22698 , 23432 , 641886 , 713893 , 7227715 , 5130874 , 42927050 , 28336474 , 902379100 , 567653771 , 3866726573 , 1257976231
n×2
57821818
n×3
86732727
n×4
115643636
n×5
144554545
n÷2
14455454.5
n÷3
9636969.6666667
n÷3
7227727.25
n÷5
5782181.8
n2
835840659206281
n3
2.4164913236813E+22
n4
6.9862960758239E+29
n5
2.019801700952E+37
2 √n
5376.8865526436
3 √n
306.91674400298
4 √n
73.327256546551
5 √n
31.060779412665
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28910910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14455455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5376.8866456343
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999930822
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28910909 can be divided by 2 positive divisors.
The sum of these divisors (counting 28910909) is 28910910, the average is 14455455.
Base
System
Value
2
Binary
1101110010010010100111101
3
Ternary
2000101211022102
4
Quaternary
1232102110331
5
Quinary
24400122114
6
Senary
2511354445
8
Octal
156222475
10
Decimal
28910909
12
Duodecimal
9822a25
16
Hexadecimal
1b9253d
20
Vigesimal
90dh59
36
Base36
h7nst
md5
aa2fee29180fa015df3ff437c218c765
sha1
a74d7ffd7433d4b3fca485c3e1f23fbca75037ce
sha256
daddee6175908c5501e10643a2529b5e4d774903698484bc12352042fe740579
sha512
406538f63d06b90b677596d43a7cb72e2febfb54c3bf7eae64e872ac60520a0ab5970d662bc61bc747b727bd04948c0b8cae91d89449c7964e75b08fb138b815
ripemd-160
6f41de6be08eb16de91df2fc5e8ad768e18f44d2
Diameter
57821818
Circumference
181652598.64601
Area
2.6258708745341E+15
Volume
1.0122175186587E+23
Surface area
1.0503483498136E+16
Circumference
181652598.64601
Perimeter
115643636
Area
835840659206281
Diagonal
40886199.608334
Surface area
5015043955237686
Volume
2.4164913236813E+22
Space diagonal
50075163.281
Perimeter
86732727
Area
3.6192962219429E+14
Altitude
25037581.6405
Surface area
3.6192962219429E+14
Volume
2.8478623360891E+21
Height
13628733.202778