28266721 (number)

28266721 is an odd 8-digits composite number following 28266720 and preceding 28266722. In scientific notation, it is written as 2.8266721 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 24120528 positive integers (up to 28266721) that are relatively prime to 28266721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8266721 × 10^7
Engineering notation 2.8266721 × 10^6

Prime Factorization of 28266721

Prime Factorization 7 × 227 × 17789

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28266721
Product of the distinct prime numbers

The prime factorization of 28266721 is 7 × 227 × 17789. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28266721)

Multiplication

n×y
n×2 56533442
n×3 84800163
n×4 113066884
n×5 141333605

Division

n÷y
n÷2 14133360.5
n÷3 9422240.3333333
n÷3 7066680.25
n÷5 5653344.2

Exponentiation

ny
n2 799007516091841
n3 2.2585322534271E+22
n4 6.3841301077125E+29
n5 1.8045842458241E+37

Nth Root

y√n
2√n 5316.645653041
3√n 304.62004464713
4√n 72.91533208483
5√n 30.921110763229

Divisors of 28266721

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 -28266720
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 28266721 can be divided by 8 positive divisors. The sum of these divisors (counting 28266721) is 1, the average is 0.125.

Base conversion 28266721

Base System Value
2 Binary 1101011110101000011100001
3 Ternary 1222012002122121
4 Quaternary 1223311003201
5 Quinary 24214013341
6 Senary 2445504241
8 Octal 153650341
10 Decimal 28266721
12 Duodecimal 9572081
16 Hexadecimal 1af50e1
20 Vigesimal 8gd6g1
36 Base36 gtuqp

Cryptographic Hash Functions

md5 32c3eba65022df30b8b60da3240ac692
sha1 4425594b8389aaf9f00843d574a48fb46994f599
sha256 c72146a1eda2a438db04fcddf23769b4b9a1aa5de590e03241b2e005db5b1f98
sha512 002f75e58cb4394d5d07ed339d19e37e0cbcf6f7e85723962d736ea3e3fa2ecba2097912b574338b15cee5ca97598ebcfb3c0c9a856931a40117d9f8c8dfd6c3
ripemd-160 edc0d226d9ea23a2105d611742d682667ffe4d4e

28266721 as geometric shapes

Circle

Radius = n
Diameter 56533442
Circumference 177605046.06934
Area 2.5101561427172E+15

Sphere

Radius = n
Volume 9.4605177803496E+22
Surface area 1.0040624570869E+16
Circumference 177605046.06934

Square

Length = n
Perimeter 113066884
Area 799007516091841
Diagonal 39975180.202016

Cube

Length = n
Surface area 4794045096551046
Volume 2.2585322534271E+22
Space diagonal 48959396.935374

Equilateral Triangle

Length = n
Perimeter 84800163
Area 3.4598040337512E+14
Altitude 24479698.467687

Triangular Pyramid

Length = n
Surface area 3.4598040337512E+14
Volume 2.6617057865447E+21
Height 13325060.067339