28668731 (number)

28668731 is an odd 8-digits composite number following 28668730 and preceding 28668732. In scientific notation, it is written as 2.8668731 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 22197024 positive integers (up to 28668731) that are relatively prime to 28668731.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-eight thousand seven hundred thirty-one

Notation

Scientific notation 2.8668731 × 10^7
Engineering notation 2.8668731 × 10^6

Prime Factorization of 28668731

Prime Factorization 91 × 47 × 6703

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28668731
Product of the distinct prime numbers

The prime factorization of 28668731 is 91 × 47 × 6703. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28668731)

Multiplication

n×y
n×2 57337462
n×3 86006193
n×4 114674924
n×5 143343655

Division

n÷y
n÷2 14334365.5
n÷3 9556243.6666667
n÷3 7167182.75
n÷5 5733746.2

Exponentiation

ny
n2 821896137150361
n3 2.3562719265903E+22
n4 6.7551326026269E+29
n5 1.9366107945404E+37

Nth Root

y√n
2√n 5354.3189109354
3√n 306.05735678505
4√n 73.173211703023
5√n 31.008566806881

Divisors of 28668731

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 -28668730
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 28668731 can be divided by 8 positive divisors. The sum of these divisors (counting 28668731) is 1, the average is 0.125.

Base conversion 28668731

Base System Value
2 Binary 1101101010111001100111011
3 Ternary 1222221112002212
4 Quaternary 1231113030323
5 Quinary 24314344411
6 Senary 2502245335
8 Octal 155271473
10 Decimal 28668731
12 Duodecimal 972684b
16 Hexadecimal 1b5733b
20 Vigesimal 8j3bgb
36 Base36 h2gxn

Cryptographic Hash Functions

md5 0994385d801b6c8d8961a3bcec99668e
sha1 80564fa4a014aabdaf3bc068b81a18e091f7f915
sha256 0b7dd26888cf4b4ff9f54cff8b6e6f4b3746a82b19b3ba9dd8ccbac5e3b7a317
sha512 78047c6a10396fad564a4cbd541905c1837c49355e9d80e24ba29b9d99576961399f8994facd0fa7f42f763e5e58071af464f9e9d390814e40d8c54a925a28b2
ripemd-160 14189393b1e91b152e0fefab517c33026ce2fa1f

28668731 as geometric shapes

Circle

Radius = n
Diameter 57337462
Circumference 180130949.39468
Area 2.5820628664854E+15

Sphere

Radius = n
Volume 9.8699287659145E+22
Surface area 1.0328251465942E+16
Circumference 180130949.39468

Square

Length = n
Perimeter 114674924
Area 821896137150361
Diagonal 40543708.196226

Cube

Length = n
Surface area 4931376822902166
Volume 2.3562719265903E+22
Space diagonal 49655698.680525

Equilateral Triangle

Length = n
Perimeter 86006193
Area 3.5589146702226E+14
Altitude 24827849.340262

Triangular Pyramid

Length = n
Surface area 3.5589146702226E+14
Volume 2.7768930960191E+21
Height 13514569.398742