28691288 (number)

28691288 is an even 8-digits composite number following 28691287 and preceding 28691289. In scientific notation, it is written as 2.8691288 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 8 positive divisors. There are 14345640 positive integers (up to 28691288) that are relatively prime to 28691288.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand two hundred eighty-eight

Notation

Scientific notation 2.8691288 × 10^7
Engineering notation 2.8691288 × 10^6

Prime Factorization of 28691288

Prime Factorization 2 × 2 × 2 × 3586411

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7172822
Product of the distinct prime numbers

The prime factorization of 28691288 is 2 × 2 × 2 × 3586411. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28691288)

Multiplication

n×y
n×2 57382576
n×3 86073864
n×4 114765152
n×5 143456440

Division

n÷y
n÷2 14345644
n÷3 9563762.6666667
n÷3 7172822
n÷5 5738257.6

Exponentiation

ny
n2 823190007098944
n3 2.3618381572398E+22
n4 6.7764178778756E+29
n5 1.9442415694248E+37

Nth Root

y√n
2√n 5356.4249271319
3√n 306.13760595888
4√n 73.187600911165
5√n 31.013444875652

Divisors of 28691288

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 -28691287
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 28691288 can be divided by 8 positive divisors. The sum of these divisors (counting 28691288) is 1, the average is 0.125.

Base conversion 28691288

Base System Value
2 Binary 1101101011100101101011000
3 Ternary 1222222200001022
4 Quaternary 1231130231120
5 Quinary 24321110123
6 Senary 2502542012
8 Octal 155345530
10 Decimal 28691288
12 Duodecimal 9737908
16 Hexadecimal 1b5cb58
20 Vigesimal 8j6848
36 Base36 h2yc8

Cryptographic Hash Functions

md5 56a64486a9b14a5a2dee7fdb118838e5
sha1 3796aa293b922e9e8fd5648f6f30200cc68a44c6
sha256 f55f769619009dd4663c03d6047e070d03129eb75343bf787d9083c6612e3ef2
sha512 fb75006e6b1c134c31c990711188a1fd2b67c7d0be88fc02f6c853a92401098671fb1a6c078528b297c62042dd466b305429a7bd2c7b76c0f48de3ebb4fcc866
ripemd-160 144a89ab929dcbd33b74caea643e0ab115b4a353

28691288 as geometric shapes

Circle

Radius = n
Diameter 57382576
Circumference 180272679.20566
Area 2.5861276788106E+15

Sphere

Radius = n
Volume 9.8932445383367E+22
Surface area 1.0344510715242E+16
Circumference 180272679.20566

Square

Length = n
Perimeter 114765152
Area 823190007098944
Diagonal 40575608.611552

Cube

Length = n
Surface area 4939140042593664
Volume 2.3618381572398E+22
Space diagonal 49694768.550591

Equilateral Triangle

Length = n
Perimeter 86073864
Area 3.5645172914459E+14
Altitude 24847384.275296

Triangular Pyramid

Length = n
Surface area 3.5645172914459E+14
Volume 2.783452961749E+21
Height 13525202.870517