28666561 (number)

28666561 is an odd 8-digits composite number following 28666560 and preceding 28666562. In scientific notation, it is written as 2.8666561 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 22337520 positive integers (up to 28666561) that are relatively prime to 28666561.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-six thousand five hundred sixty-one

Notation

Scientific notation 2.8666561 × 10^7
Engineering notation 2.8666561 × 10^6

Prime Factorization of 28666561

Prime Factorization 77 × 372293

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28666561
Product of the distinct prime numbers

The prime factorization of 28666561 is 77 × 372293. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28666561)

Multiplication

n×y
n×2 57333122
n×3 85999683
n×4 114666244
n×5 143332805

Division

n÷y
n÷2 14333280.5
n÷3 9555520.3333333
n÷3 7166640.25
n÷5 5733312.2

Exponentiation

ny
n2 821771719566721
n3 2.3557369127034E+22
n4 6.7530875907965E+29
n5 1.9358779735991E+37

Nth Root

y√n
2√n 5354.1162669483
3√n 306.04963453623
4√n 73.171827002941
5√n 31.008097371193

Divisors of 28666561

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28666560
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28666561 can be divided by 4 positive divisors. The sum of these divisors (counting 28666561) is 1, the average is 0.25.

Base conversion 28666561

Base System Value
2 Binary 1101101010110101011000001
3 Ternary 1222221102010111
4 Quaternary 1231112223001
5 Quinary 24314312221
6 Senary 2502231321
8 Octal 155265301
10 Decimal 28666561
12 Duodecimal 9725541
16 Hexadecimal 1b56ac1
20 Vigesimal 8j3681
36 Base36 h2f9d

Cryptographic Hash Functions

md5 11171e26ef4bd0b0c397fb689160fc9e
sha1 24b564fc4e826f0b23555198a51c6b2522697ada
sha256 46409a2968e3bdb9af709c6946c8b2ea07ccb713bc3f3b1e23352fb21e9247f5
sha512 daa9287ad4e2caacfdcdd480356b81270c8cd3d77c088231e0b1130eb70bced667d591d5a1271c186c524ead63ea9f7a07a04368fc9ba8ed11e48b07e679c073
ripemd-160 c963fb8951effeb4d6128d79a196e1647a06ab56

28666561 as geometric shapes

Circle

Radius = n
Diameter 57333122
Circumference 180117314.88257
Area 2.5816719971187E+15

Sphere

Radius = n
Volume 9.8676877049859E+22
Surface area 1.0326687988475E+16
Circumference 180117314.88257

Square

Length = n
Perimeter 114666244
Area 821771719566721
Diagonal 40540639.352796

Cube

Length = n
Surface area 4930630317400326
Volume 2.3557369127034E+22
Space diagonal 49651940.130272

Equilateral Triangle

Length = n
Perimeter 85999683
Area 3.558375926282E+14
Altitude 24825970.065136

Triangular Pyramid

Length = n
Surface area 3.558375926282E+14
Volume 2.7762625761068E+21
Height 13513546.450932