28709209 (number)

28709209 is an odd 8-digits composite number following 28709208 and preceding 28709210. In scientific notation, it is written as 2.8709209 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 25598016 positive integers (up to 28709209) that are relatively prime to 28709209.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred nine thousand two hundred nine

Notation

Scientific notation 2.8709209 × 10^7
Engineering notation 2.8709209 × 10^6

Prime Factorization of 28709209

Prime Factorization 19 × 17 × 88883

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28709209
Product of the distinct prime numbers

The prime factorization of 28709209 is 19 × 17 × 88883. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 80, 100, 836, 732, 6887, 8149, 401, 73293, 481710, 108520, 9197164, 7167957, 61362066, 46571469, 555439837, 260587118, 4499807010, 2867077588

Basic calculations (n = 28709209)

Multiplication

n×y
n×2 57418418
n×3 86127627
n×4 114836836
n×5 143546045

Division

n÷y
n÷2 14354604.5
n÷3 9569736.3333333
n÷3 7177302.25
n÷5 5741841.8

Exponentiation

ny
n2 824218681405681
n3 2.366266638618E+22
n4 6.7933643477812E+29
n5 1.950321168736E+37

Nth Root

y√n
2√n 5358.0975168431
3√n 306.2013320414
4√n 73.199026747923
5√n 31.017318198699

Divisors of 28709209

1, 17, 19, 323, 88883, 1511011, 1688777, 28709209

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 -28709208
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 28709209 can be divided by 8 positive divisors. The sum of these divisors (counting 28709209) is 1, the average is 0.125.

Base conversion 28709209

Base System Value
2 Binary 1101101100001000101011001
3 Ternary 2000000120122001
4 Quaternary 1231201011121
5 Quinary 24322143314
6 Senary 2503201001
8 Octal 155410531
10 Decimal 28709209
12 Duodecimal 9746161
16 Hexadecimal 1b61159
20 Vigesimal 8j8d09
36 Base36 h3c61

Cryptographic Hash Functions

md5 d8c54ea4af30221d8df4f781d4af4694
sha1 95aca2a93607b3d05625528f0f7c7c11375a4fec
sha256 d4c7d6a0641e00f737ec5512b0636b4407d265db32c9305a4aa574db7d713d4b
sha512 8671fc029fc50cbcca0f6dfe36e7555db199e50367ff0f3d51d7ed04c158e04a414ad00d25510cc38b567eac590db24074dc75fec5a6a07f4ab3d1ad9dbeebac
ripemd-160 bb129bac21bc394960cadd36866d8e7c2739072c

28709209 as geometric shapes

Circle

Radius = n
Diameter 57418418
Circumference 180385280.16955
Area 2.5893593544556E+15

Sphere

Radius = n
Volume 9.9117945177559E+22
Surface area 1.0357437417822E+16
Circumference 180385280.16955

Square

Length = n
Perimeter 114836836
Area 824218681405681
Diagonal 40600952.732804

Cube

Length = n
Surface area 4945312088434086
Volume 2.366266638618E+22
Space diagonal 49725808.633114

Equilateral Triangle

Length = n
Perimeter 86127627
Area 3.5689715818552E+14
Altitude 24862904.316557

Triangular Pyramid

Length = n
Surface area 3.5689715818552E+14
Volume 2.7886719771038E+21
Height 13533650.910935