28408909 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred eight thousand nine hundred nine

Notation

Scientific notation 2.8408909 × 10^7
Engineering notation 2.8408909 × 10^6

Prime Factorization of 28408909

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.

Most popular turbo-numbers

Basic calculations (n = 28408909)

Multiplication

n×y
n×2 56817818
n×3 85226727
n×4 113635636
n×5 142044545

Division

n÷y
n÷2 14204454.5
n÷3 9469636.3333333
n÷3 7102227.25
n÷5 5681781.8

Exponentiation

ny
n2 807066110570281
n3 2.2927867692175E+22
n4 6.5135570683104E+29
n5 1.8504305001994E+37

Nth Root

y√n
2√n 5330.0008442776
3√n 305.1299598454
4√n 73.006854775957
5√n 30.95215639547

Divisors of 28408909

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 conversion 28408909

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

Cryptographic Hash Functions

md5 0ca44eb90e6990bb123b9368a0f3c900
sha1 a27372f7bfcf4658de01df64764bf94c31601648
sha256 92381571f150fc53597dfefe79e14629e561627046cba66241ff371eca86fd80
sha512 e93fbf91bac80678f8936368e3d063cd442ff44bec30af684d8034c82c901020f1c89b6be79a144c5d72b8d62e46009136bc0048d9b2481268b9898a9856e565
ripemd-160 09440341a2b6e6438e898fb32d6af0c86e8cb5b2

28408909 as geometric shapes

Circle

Radius = n
Diameter 56817818
Circumference 178498439.6218
Area 2.5354729639289E+15

Sphere

Radius = n
Volume 9.6040027605621E+22
Surface area 1.0141891855716E+16
Circumference 178498439.6218

Square

Length = n
Perimeter 113635636
Area 807066110570281
Diagonal 40176264.400023

Cube

Length = n
Surface area 4842396663421686
Volume 2.2927867692175E+22
Space diagonal 49205673.775601

Equilateral Triangle

Length = n
Perimeter 85226727
Area 3.4946987714368E+14
Altitude 24602836.8878

Triangular Pyramid

Length = n
Surface area 3.4946987714368E+14
Volume 2.7020751205475E+21
Height 13392088.133341