28561 (number)

28561 is an odd 5-digits composite number following 28560 and preceding 28562. In scientific notation, it is written as 2.8561 × 10^4. The sum of its digits is 22. It has a total of 4 prime factors and 5 positive divisors. There are 26364 positive integers (up to 28561) that are relatively prime to 28561.

Interesting facts

Basic properties

Name

Name twenty-eight thousand five hundred sixty-one

Notation

Scientific notation 2.8561 × 10^4
Engineering notation 2.8561 × 10^3

Prime Factorization of 28561

Prime Factorization 13 × 13 × 13 × 13

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 13
Product of the distinct prime numbers

The prime factorization of 28561 is 13 × 13 × 13 × 13. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28561)

Multiplication

n×y
n×2 57122
n×3 85683
n×4 114244
n×5 142805

Division

n÷y
n÷2 14280.5
n÷3 9520.3333333333
n÷3 7140.25
n÷5 5712.2

Exponentiation

ny
n2 815730721
n3 23298085122481
n4 665416609183179841
n5 1.9004963774881E+22

Nth Root

y√n
2√n 169
3√n 30.56735094037
4√n 13
5√n 7.7831371220395

Divisors of 28561

1, 13, 169, 2197, 28561

5 divisors

τ Total Divisors 5
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28560
Sum of the proper positive divisors of n
A Arithmetic Mean 0.2
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 5
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28561 can be divided by 5 positive divisors. The sum of these divisors (counting 28561) is 1, the average is 0.2.

Base conversion 28561

Base System Value
2 Binary 110111110010001
3 Ternary 1110011211
4 Quaternary 12332101
5 Quinary 1403221
6 Senary 340121
8 Octal 67621
10 Decimal 28561
12 Duodecimal 14641
16 Hexadecimal 6f91
20 Vigesimal 3b81
36 Base36 m1d

Cryptographic Hash Functions

md5 b29c5090440079d0121f4973000eeba5
sha1 8d50ebb01bf552bb3ebc4485270693a26b013ae4
sha256 65250e9a16b43191d990a2341ce712fa82f8fd3cbd6143d6a9384be8a25129bd
sha512 0d16ae98367ef95524c1e6e168013e899db93cbaa3593d9699460fee5c44599a6f2b704842d42b63ba9d806984f0ffd1068cc117e4d02fa3c0950df8f8a84c92
ripemd-160 a873cc5acfd65c6df9cd916df8b080a53d538c04

28561 as geometric shapes

Circle

Radius = n
Diameter 57122
Circumference 179454.05555836
Area 2562693640.4011

Sphere

Radius = n
Volume 97590790751328
Surface area 10250774561.604
Circumference 179454.05555836

Square

Length = n
Perimeter 114244
Area 815730721
Diagonal 40391.353554938

Cube

Length = n
Surface area 4894384326
Volume 23298085122481
Space diagonal 49469.103114975

Equilateral Triangle

Length = n
Perimeter 85683
Area 353221763.5167
Altitude 24734.551557487

Triangular Pyramid

Length = n
Surface area 353221763.5167
Volume 2745705663128
Height 13463.784518313