28821641 (number)

28821641 is an odd 8-digits composite number following 28821640 and preceding 28821642. In scientific notation, it is written as 2.8821641 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 28426752 positive integers (up to 28821641) that are relatively prime to 28821641.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred twenty-one thousand six hundred forty-one

Notation

Scientific notation 2.8821641 × 10^7
Engineering notation 2.8821641 × 10^6

Prime Factorization of 28821641

Prime Factorization 73 × 394817

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28821641
Product of the distinct prime numbers

The prime factorization of 28821641 is 73 × 394817. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28821641)

Multiplication

n×y
n×2 57643282
n×3 86464923
n×4 115286564
n×5 144108205

Division

n÷y
n÷2 14410820.5
n÷3 9607213.6666667
n÷3 7205410.25
n÷5 5764328.2

Exponentiation

ny
n2 830686989932881
n3 2.3941762207216E+22
n4 6.9004087524375E+29
n5 1.9888110381601E+37

Nth Root

y√n
2√n 5368.5790485006
3√n 306.60053013503
4√n 73.2705878815
5√n 31.041574450591

Divisors of 28821641

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 -28821640
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 28821641 can be divided by 4 positive divisors. The sum of these divisors (counting 28821641) is 1, the average is 0.25.

Base conversion 28821641

Base System Value
2 Binary 1101101111100100010001001
3 Ternary 2000020021212012
4 Quaternary 1231330202021
5 Quinary 24334243031
6 Senary 2505425305
8 Octal 155744211
10 Decimal 28821641
12 Duodecimal 979b235
16 Hexadecimal 1b7c889
20 Vigesimal 902e21
36 Base36 h5qx5

Cryptographic Hash Functions

md5 70d56f47bf2ce70d42642aa1edfe1f9a
sha1 9df5e659fd47f20edcdb163c8ee463fc4e3d3e1a
sha256 881f88c9f4c9285f6b6fa0dd679fefbd267bbb241883f1c00f225fb9c26034a4
sha512 f0849d3f7ed2bc1982e50e1866299eae6ee9f3e719b3da8561aa1bd561599f81aeaa8cfdd1a9c9c03b2a935ee37e47ac0dbc8032eaa33b26903e316e5f26ae2b
ripemd-160 b791a60dac466d6a820e08bd503b12ab850146f0

28821641 as geometric shapes

Circle

Radius = n
Diameter 57643282
Circumference 181091711.26
Area 2.6096801450058E+15

Sphere

Radius = n
Volume 1.0028701901891E+23
Surface area 1.0438720580023E+16
Circumference 181091711.26

Square

Length = n
Perimeter 115286564
Area 830686989932881
Diagonal 40759955.592048

Cube

Length = n
Surface area 4984121939597286
Volume 2.3941762207216E+22
Space diagonal 49920546.56951

Equilateral Triangle

Length = n
Perimeter 86464923
Area 3.5969801793755E+14
Altitude 24960273.284755

Triangular Pyramid

Length = n
Surface area 3.5969801793755E+14
Volume 2.8215637350464E+21
Height 13586651.864016