28687539 (number)

28687539 is an odd 8-digits composite number following 28687538 and preceding 28687540. In scientific notation, it is written as 2.8687539 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 18894440 positive integers (up to 28687539) that are relatively prime to 28687539.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-seven thousand five hundred thirty-nine

Notation

Scientific notation 2.8687539 × 10^7
Engineering notation 2.8687539 × 10^6

Prime Factorization of 28687539

Prime Factorization 3 × 83 × 115211

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28687539
Product of the distinct prime numbers

The prime factorization of 28687539 is 3 × 83 × 115211. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 7, 11, 11, 843, 55, 5402, 909, 96116, 48173, 941402, 164763, 704806, 4326977, 80912120, 15251743, 537679992, 667712331, 2483583998, 7172748654

Basic calculations (n = 28687539)

Multiplication

n×y
n×2 57375078
n×3 86062617
n×4 114750156
n×5 143437695

Division

n÷y
n÷2 14343769.5
n÷3 9562513
n÷3 7171884.75
n÷5 5737507.8

Exponentiation

ny
n2 822974893876521
n3 2.3609124364104E+22
n4 6.7728767595107E+29
n5 1.9429716618066E+37

Nth Root

y√n
2√n 5356.0749621341
3√n 306.12427136666
4√n 73.185209995833
5√n 31.012634347506

Divisors of 28687539

1, 3, 83, 249, 115211, 345633, 9562513, 28687539

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 -28687538
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 28687539 can be divided by 8 positive divisors. The sum of these divisors (counting 28687539) is 1, the average is 0.125.

Base conversion 28687539

Base System Value
2 Binary 1101101011011110010110011
3 Ternary 1222222110220110
4 Quaternary 1231123302303
5 Quinary 24321000124
6 Senary 2502512403
8 Octal 155336263
10 Decimal 28687539
12 Duodecimal 9735703
16 Hexadecimal 1b5bcb3
20 Vigesimal 8j5igj
36 Base36 h2vg3

Cryptographic Hash Functions

md5 7ca963e94b51eff2f46dd97a40e532be
sha1 8988971b146763a3e7d2050ea1542a40f9bc2eaa
sha256 0f3789b603d9470a4ca5305a5879ffb9b15efc6ecf929b437f02d712476367ca
sha512 1a32edf673696c818707b6b0907ff932dbab1958931c287dd39acae80148457d004ac63a72f07e70048e5eca5084c0b8986fecc3310d1a26f2a421d4ee4c6d2c
ripemd-160 b3889a2de379aef2dad152e6513c2af535131df8

28687539 as geometric shapes

Circle

Radius = n
Diameter 57375078
Circumference 180249123.54394
Area 2.5854518806913E+15

Sphere

Radius = n
Volume 9.8893668879941E+22
Surface area 1.0341807522765E+16
Circumference 180249123.54394

Square

Length = n
Perimeter 114750156
Area 822974893876521
Diagonal 40570306.724907

Cube

Length = n
Surface area 4937849363259126
Volume 2.3609124364104E+22
Space diagonal 49688275.092114

Equilateral Triangle

Length = n
Perimeter 86062617
Area 3.5635858238693E+14
Altitude 24844137.546057

Triangular Pyramid

Length = n
Surface area 3.5635858238693E+14
Volume 2.782361989289E+21
Height 13523435.574969