28685409 (number)

28685409 is an odd 8-digits composite number following 28685408 and preceding 28685410. In scientific notation, it is written as 2.8685409 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 17998656 positive integers (up to 28685409) that are relatively prime to 28685409.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-five thousand four hundred nine

Notation

Scientific notation 2.8685409 × 10^7
Engineering notation 2.8685409 × 10^6

Prime Factorization of 28685409

Prime Factorization 3 × 17 × 562459

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28685409
Product of the distinct prime numbers

The prime factorization of 28685409 is 3 × 17 × 562459. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28685409)

Multiplication

n×y
n×2 57370818
n×3 86056227
n×4 114741636
n×5 143427045

Division

n÷y
n÷2 14342704.5
n÷3 9561803
n÷3 7171352.25
n÷5 5737081.8

Exponentiation

ny
n2 822852689497281
n3 2.360386594498E+22
n4 6.7708654861291E+29
n5 1.942250457536E+37

Nth Root

y√n
2√n 5355.8761188063
3√n 306.11669478046
4√n 73.183851489289
5√n 31.012173806969

Divisors of 28685409

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28685408
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28685409 can be divided by 8 positive divisors. The sum of these divisors (counting 28685409) is 1, the average is 0.125.

Base conversion 28685409

Base System Value
2 Binary 1101101011011010001100001
3 Ternary 1222222100222120
4 Quaternary 1231123101201
5 Quinary 24320413114
6 Senary 2502454453
8 Octal 155332141
10 Decimal 28685409
12 Duodecimal 9734429
16 Hexadecimal 1b5b461
20 Vigesimal 8j5da9
36 Base36 h2tsx

Cryptographic Hash Functions

md5 c291c5ea4a4781b3fca5b8523c3ddad5
sha1 8edb2790e006ab2300635c723c8d517c203417b5
sha256 fb8018d57696b6e553d4ac2351e079569b0cc7ab6519f8f3c2a5f36d6a47dd57
sha512 3dfd819fad4ba24a89d152dc5cc338bfc8552700394e665744ce446b0d05820f25c2a4004d237d562e8397a8157504818c14cf9cc95d999455171f0e079dc44a
ripemd-160 bc601d11a4e51b819c78beb5f5bac0190aae3125

28685409 as geometric shapes

Circle

Radius = n
Diameter 57370818
Circumference 180235740.35924
Area 2.5850679643113E+15

Sphere

Radius = n
Volume 9.8871642465421E+22
Surface area 1.0340271857245E+16
Circumference 180235740.35924

Square

Length = n
Perimeter 114741636
Area 822852689497281
Diagonal 40567294.450019

Cube

Length = n
Surface area 4937116136983686
Volume 2.360386594498E+22
Space diagonal 49684585.823894

Equilateral Triangle

Length = n
Perimeter 86056227
Area 3.563056663385E+14
Altitude 24842292.911947

Triangular Pyramid

Length = n
Surface area 3.563056663385E+14
Volume 2.7817422786522E+21
Height 13522431.48334