28109729 (number)

28109729 is an odd 8-digits composite number following 28109728 and preceding 28109730. In scientific notation, it is written as 2.8109729 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 27140400 positive integers (up to 28109729) that are relatively prime to 28109729.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred nine thousand seven hundred twenty-nine

Notation

Scientific notation 2.8109729 × 10^7
Engineering notation 2.8109729 × 10^6

Prime Factorization of 28109729

Prime Factorization 29 × 969301

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28109729
Product of the distinct prime numbers

The prime factorization of 28109729 is 29 × 969301. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28109729)

Multiplication

n×y
n×2 56219458
n×3 84329187
n×4 112438916
n×5 140548645

Division

n÷y
n÷2 14054864.5
n÷3 9369909.6666667
n÷3 7027432.25
n÷5 5621945.8

Exponentiation

ny
n2 790156864453441
n3 2.2211095327276E+22
n4 6.2434787044289E+29
n5 1.7550249439877E+37

Nth Root

y√n
2√n 5301.8608997219
3√n 304.05504903953
4√n 72.813878482896
5√n 30.886687333171

Divisors of 28109729

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 -28109728
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 28109729 can be divided by 4 positive divisors. The sum of these divisors (counting 28109729) is 1, the average is 0.25.

Base conversion 28109729

Base System Value
2 Binary 1101011001110101110100001
3 Ternary 1221220010022002
4 Quaternary 1223032232201
5 Quinary 24144002404
6 Senary 2442253345
8 Octal 153165641
10 Decimal 28109729
12 Duodecimal 94b7255
16 Hexadecimal 1aceba1
20 Vigesimal 8fde69
36 Base36 gqhlt

Cryptographic Hash Functions

md5 ad9e5399653b50909291cd1db227faf2
sha1 5b6f45f84fd55597348f2dfecf7a987b8f792120
sha256 311190b7cd6a1e4b2af30ceb7c2128ca922e2d5e4a3981058851ee978e2ea324
sha512 8c9d56816c10c51a0fd771bfb7feecde489058f1e1f5b8397062a4dcb5d9f9e9f01be52b7d81e5a6e83c37380f229fa27004335092b91e22e2a3fd8742b3ec34
ripemd-160 a9a61f4437b60983f69d491fa2d0d558cc5478e9

28109729 as geometric shapes

Circle

Radius = n
Diameter 56219458
Circumference 176618636.2416
Area 2.4823510005505E+15

Sphere

Radius = n
Volume 9.303761854447E+22
Surface area 9.9294040022019E+15
Circumference 176618636.2416

Square

Length = n
Perimeter 112438916
Area 790156864453441
Diagonal 39753159.986432

Cube

Length = n
Surface area 4740941186720646
Volume 2.2211095327276E+22
Space diagonal 48687478.814992

Equilateral Triangle

Length = n
Perimeter 84329187
Area 3.4214795879567E+14
Altitude 24343739.407496

Triangular Pyramid

Length = n
Surface area 3.4214795879567E+14
Volume 2.6176026872496E+21
Height 13251053.328811