28711215 (number)

28711215 is an odd 8-digits composite number following 28711214 and preceding 28711216. In scientific notation, it is written as 2.8711215 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 13298688 positive integers (up to 28711215) that are relatively prime to 28711215.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred eleven thousand two hundred fifteen

Notation

Scientific notation 2.8711215 × 10^7
Engineering notation 2.8711215 × 10^6

Prime Factorization of 28711215

Prime Factorization 15 × 3 × 13 × 17 × 2887

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28711215
Product of the distinct prime numbers

The prime factorization of 28711215 is 15 × 3 × 13 × 17 × 2887. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 4, 43, 40, 825, 424, 3831, 5013, 63266, 30508, 965587, 986294, 9648581, 7595037, 94768791, 84975243, 296696738, 518680225, 9586316987, 9522900731

Basic calculations (n = 28711215)

Multiplication

n×y
n×2 57422430
n×3 86133645
n×4 114844860
n×5 143556075

Division

n÷y
n÷2 14355607.5
n÷3 9570405
n÷3 7177803.75
n÷5 5742243

Exponentiation

ny
n2 824333866776225
n3 2.3667626880794E+22
n4 6.7952632391424E+29
n5 1.9510026384061E+37

Nth Root

y√n
2√n 5358.2847068815
3√n 306.20846361564
4√n 73.200305374237
5√n 31.01775164151

Divisors of 28711215

1, 3, 13, 15, 17, 39, 45, 51, 195, 221, 255, 585, 663, 765, 2887, 3315, 8661, 9945, 37531, 43305, 49079, 112593, 129915, 147237, 562965, 638027, 736185, 1688895, 1914081, 2208555, 9570405, 28711215

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28711214
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28711215 can be divided by 32 positive divisors. The sum of these divisors (counting 28711215) is 1, the average is 0.03125.

Base conversion 28711215

Base System Value
2 Binary 1101101100001100100101111
3 Ternary 2000000200101100
4 Quaternary 1231201210233
5 Quinary 24322224330
6 Senary 2503214143
8 Octal 155414457
10 Decimal 28711215
12 Duodecimal 9747353
16 Hexadecimal 1b6192f
20 Vigesimal 8j8i0f
36 Base36 h3dpr

Cryptographic Hash Functions

md5 52b747b38ba003682c7b84e2676d00ce
sha1 2459458665e86661939f3f86c49c3b5a7b68de71
sha256 74ee49b56f59d17562031092bd9c5e3092b5aa8dd0004fc1becf7aaf9193e49d
sha512 367fb3b44fb642ddcdd418a344d32dcebc62ef29dbd1b305791a0d1439f2bac27c974f7aedf1bd322d689fcbf45b58c705b3ac47417251c06b3f6c4398430cd1
ripemd-160 26b0d07d3f0a5663b2623abb8d3d2c46f5c46535

28711215 as geometric shapes

Circle

Radius = n
Diameter 57422430
Circumference 180397884.23927
Area 2.5897212199695E+15

Sphere

Radius = n
Volume 9.9138723648807E+22
Surface area 1.0358884879878E+16
Circumference 180397884.23927

Square

Length = n
Perimeter 114844860
Area 824333866776225
Diagonal 40603789.64521

Cube

Length = n
Surface area 4946003200657350
Volume 2.3667626880794E+22
Space diagonal 49729283.127034

Equilateral Triangle

Length = n
Perimeter 86133645
Area 3.5694703491403E+14
Altitude 24864641.563517

Triangular Pyramid

Length = n
Surface area 3.5694703491403E+14
Volume 2.7892565770004E+21
Height 13534596.548403