28687788 (number)

28687788 is an even 8-digits composite number following 28687787 and preceding 28687789. In scientific notation, it is written as 2.8687788 × 10^7. The sum of its digits is 54. It has a total of 6 prime factors and 36 positive divisors. There are 9446400 positive integers (up to 28687788) that are relatively prime to 28687788.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-seven thousand seven hundred eighty-eight

Notation

Scientific notation 2.8687788 × 10^7
Engineering notation 2.8687788 × 10^6

Prime Factorization of 28687788

Prime Factorization 2 × 2 × 3 × 3 × 83 × 9601

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 4781298
Product of the distinct prime numbers

The prime factorization of 28687788 is 2 × 2 × 3 × 3 × 83 × 9601. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 10, 4, 35, 676, 344, 3394, 6420, 87871, 64288, 671933, 67817, 3549174, 5888509, 4886817, 57800368, 891525608, 62343632, 7300667717, 961630860

Basic calculations (n = 28687788)

Multiplication

n×y
n×2 57375576
n×3 86063364
n×4 114751152
n×5 143438940

Division

n÷y
n÷2 14343894
n÷3 9562596
n÷3 7171947
n÷5 5737557.6

Exponentiation

ny
n2 822989180332944
n3 2.3609739131685E+22
n4 6.7731119094509E+29
n5 1.943055985586E+37

Nth Root

y√n
2√n 5356.0982067173
3√n 306.12515705577
4√n 73.185368802222
5√n 31.012688183557

Divisors of 28687788

1, 2, 3, 4, 6, 9, 12, 18, 36, 83, 166, 249, 332, 498, 747, 996, 1494, 2988, 9601, 19202, 28803, 38404, 57606, 86409, 115212, 172818, 345636, 796883, 1593766, 2390649, 3187532, 4781298, 7171947, 9562596, 14343894, 28687788

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28687787
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28687788 can be divided by 36 positive divisors. The sum of these divisors (counting 28687788) is 1, the average is 0.027777777777778.

Base conversion 28687788

Base System Value
2 Binary 1101101011011110110101100
3 Ternary 1222222111020200
4 Quaternary 1231123312230
5 Quinary 24321002123
6 Senary 2502513500
8 Octal 155336654
10 Decimal 28687788
12 Duodecimal 9735890
16 Hexadecimal 1b5bdac
20 Vigesimal 8j5j98
36 Base36 h2vn0

Cryptographic Hash Functions

md5 82bc960c592b96851b605a789380c364
sha1 2a06b98153873707b8c2e70f035c54ec658e20eb
sha256 527fae7236aa49da5b513bdad487b8601fdd492201c488ab6d4bb2b4d678fb36
sha512 b63e9fd9dd429d16379b643d16532bf1740db9c992bcde7828176d477ceef8ce7753a85c480cac24159603c23155cc483f133f7ae4189677bb144bb42069318f
ripemd-160 16b2821c87ad653f89a1d515b93f697130518c6e

28687788 as geometric shapes

Circle

Radius = n
Diameter 57375576
Circumference 180250688.05708
Area 2.5854967629179E+15

Sphere

Radius = n
Volume 9.8896244012365E+22
Surface area 1.0341987051671E+16
Circumference 180250688.05708

Square

Length = n
Perimeter 114751152
Area 822989180332944
Diagonal 40570658.864084

Cube

Length = n
Surface area 4937935081997664
Volume 2.3609739131685E+22
Space diagonal 49688706.372765

Equilateral Triangle

Length = n
Perimeter 86063364
Area 3.5636476860403E+14
Altitude 24844353.186382

Triangular Pyramid

Length = n
Surface area 3.5636476860403E+14
Volume 2.7824344403433E+21
Height 13523552.954695