28408909 is an odd 8-digits composite number following 28408908
and preceding 28408910 . In scientific notation, it is written as 2.8408909 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 28383904 positive integers (up to 28408909) that are relatively prime to 28408909.
28408909 has 4 divisors, whose sum is 28433916
The reverse of 28408909 is 90980482
Previous prime number is 1193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million four hundred eight thousand nine hundred nine
Scientific notation
2.8408909 × 10^7
Engineering notation
2.8408909 × 10^6
Prime Factorization
1193 × 23813
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28408909
Product of the distinct prime numbers
The prime factorization of 28408909 is 1193 × 23813.
Since it has a total of 2 prime factors.
10 , 9 , 22 , 27 , 209 , 324 , 5535 , 4335 , 27298 , 17941 , 744614 , 58487 , 911074 , 7864931 , 15936645 , 48790061 , 383997740 , 570879102 , 1637763147 , 8977811883
n×2
56817818
n×3
85226727
n×4
113635636
n×5
142044545
n÷2
14204454.5
n÷3
9469636.3333333
n÷3
7102227.25
n÷5
5681781.8
n2
807066110570281
n3
2.2927867692175E+22
n4
6.5135570683104E+29
n5
1.8504305001994E+37
2 √n
5330.0008442776
3 √n
305.1299598454
4 √n
73.006854775957
5 √n
30.95215639547
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
-28408908
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 28408909 can be divided by 4 positive divisors.
The sum of these divisors (counting 28408909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010111110001001101
3
Ternary
1222110022200211
4
Quaternary
1230113301031
5
Quinary
24233041114
6
Senary
2452522421
8
Octal
154276115
10
Decimal
28408909
12
Duodecimal
9620411
16
Hexadecimal
1b17c4d
20
Vigesimal
8hb259
36
Base36
gwwgd
md5
0ca44eb90e6990bb123b9368a0f3c900
sha1
a27372f7bfcf4658de01df64764bf94c31601648
sha256
92381571f150fc53597dfefe79e14629e561627046cba66241ff371eca86fd80
sha512
e93fbf91bac80678f8936368e3d063cd442ff44bec30af684d8034c82c901020f1c89b6be79a144c5d72b8d62e46009136bc0048d9b2481268b9898a9856e565
ripemd-160
09440341a2b6e6438e898fb32d6af0c86e8cb5b2
Diameter
56817818
Circumference
178498439.6218
Area
2.5354729639289E+15
Volume
9.6040027605621E+22
Surface area
1.0141891855716E+16
Circumference
178498439.6218
Perimeter
113635636
Area
807066110570281
Diagonal
40176264.400023
Surface area
4842396663421686
Volume
2.2927867692175E+22
Space diagonal
49205673.775601
Perimeter
85226727
Area
3.4946987714368E+14
Altitude
24602836.8878
Surface area
3.4946987714368E+14
Volume
2.7020751205475E+21
Height
13392088.133341