28292721 (number)

28292721 is an odd 8-digits composite number following 28292720 and preceding 28292722. In scientific notation, it is written as 2.8292721 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 18778992 positive integers (up to 28292721) that are relatively prime to 28292721.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred ninety-two thousand seven hundred twenty-one

Notation

Scientific notation 2.8292721 × 10^7
Engineering notation 2.8292721 × 10^6

Prime Factorization of 28292721

Prime Factorization 3 × 229 × 41183

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28292721
Product of the distinct prime numbers

The prime factorization of 28292721 is 3 × 229 × 41183. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 5, 73, 25, 252, 10, 4323, 9990, 53132, 62435, 103002, 707053, 9730088, 1857533, 82198156, 23806111, 416621914, 78197961, 3028527684, 2860525576

Basic calculations (n = 28292721)

Multiplication

n×y
n×2 56585442
n×3 84878163
n×4 113170884
n×5 141463605

Division

n÷y
n÷2 14146360.5
n÷3 9430907
n÷3 7073180.25
n÷5 5658544.2

Exponentiation

ny
n2 800478061583841
n3 2.2647702463012E+22
n4 6.4076512707702E+29
n5 1.812898896692E+37

Nth Root

y√n
2√n 5319.0902417613
3√n 304.71341350147
4√n 72.932093359243
5√n 30.926796978132

Divisors of 28292721

1, 3, 229, 687, 41183, 123549, 9430907, 28292721

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 -28292720
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 28292721 can be divided by 8 positive divisors. The sum of these divisors (counting 28292721) is 1, the average is 0.125.

Base conversion 28292721

Base System Value
2 Binary 1101011111011011001110001
3 Ternary 1222020102022120
4 Quaternary 1223323121301
5 Quinary 24220331341
6 Senary 2450224453
8 Octal 153733161
10 Decimal 28292721
12 Duodecimal 9585129
16 Hexadecimal 1afb671
20 Vigesimal 8ggbg1
36 Base36 guesx

Cryptographic Hash Functions

md5 6f730f275472b2a4c8e6f9a3cd600817
sha1 5718241314b38c351988dd8b85f19c0c45599ad8
sha256 08ad2e071ca535cc7ececa4443c9ddf1b226bfad49ef8ba156063c6d563218c5
sha512 157001ecc815a55910d56748bffa19eee2f47fd6f0c6579ab2679f3509b2621570424f3f89df2591bc6399656255d33a376e55cdd90e504c5b61eb92a2cd61ef
ripemd-160 d56b7a9439230e6e7be439e36256f9dc4e4e3de9

28292721 as geometric shapes

Circle

Radius = n
Diameter 56585442
Circumference 177768408.88733
Area 2.5147759976316E+15

Sphere

Radius = n
Volume 9.4866474237983E+22
Surface area 1.0059103990526E+16
Circumference 177768408.88733

Square

Length = n
Perimeter 113170884
Area 800478061583841
Diagonal 40011949.754638

Cube

Length = n
Surface area 4802868369503046
Volume 2.2647702463012E+22
Space diagonal 49004430.256371

Equilateral Triangle

Length = n
Perimeter 84878163
Area 3.4661716825187E+14
Altitude 24502215.128185

Triangular Pyramid

Length = n
Surface area 3.4661716825187E+14
Volume 2.6690573316486E+21
Height 13337316.584879