18561 (number)

18561 is an odd 5-digits composite number following 18560 and preceding 18562. In scientific notation, it is written as 1.8561 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 11792 positive integers (up to 18561) that are relatively prime to 18561.

Interesting facts

Basic properties

Name

Name eighteen thousand five hundred sixty-one

Notation

Scientific notation 1.8561 × 10^4
Engineering notation 1.8561 × 10^3

Prime Factorization of 18561

Prime Factorization 3 × 23 × 269

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18561
Product of the distinct prime numbers

The prime factorization of 18561 is 3 × 23 × 269. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 2, 60, 595, 927, 7695, 6661, 9066, 2018, 794108, 627882, 628354, 3298571, 8652000, 13018343, 963880063, 630290317, 7956215592, 6867292429

Basic calculations (n = 18561)

Multiplication

n×y
n×2 37122
n×3 55683
n×4 74244
n×5 92805

Division

n÷y
n÷2 9280.5
n÷3 6187
n÷3 4640.25
n÷5 3712.2

Exponentiation

ny
n2 344510721
n3 6394463492481
n4 118687636883939841
n5 2.2029612282028E+21

Nth Root

y√n
2√n 136.23876100435
3√n 26.47689929405
4√n 11.672136094321
5√n 7.1403627246999

Divisors of 18561

1, 3, 23, 69, 269, 807, 6187, 18561

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 -18560
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 18561 can be divided by 8 positive divisors. The sum of these divisors (counting 18561) is 1, the average is 0.125.

Base conversion 18561

Base System Value
2 Binary 100100010000001
3 Ternary 221110110
4 Quaternary 10202001
5 Quinary 1043221
6 Senary 221533
8 Octal 44201
10 Decimal 18561
12 Duodecimal a8a9
16 Hexadecimal 4881
20 Vigesimal 2681
36 Base36 ebl

Cryptographic Hash Functions

md5 e64e0bc2f9183683031ae010a0a12645
sha1 747aef47560b7fcc48d849016bc50fbe00ea4cce
sha256 1ebcb7fc822317c3cdb0c81b047302ddd104a68cefaa8342bb07f881c0735c33
sha512 77f7e2f519ad5ebf57fafe9cdcf7e0513717455bf06c6fea10534ef5615257987700443b4daa92c90f0845e8b2ae8b1da2cbfef060b7898650c69ff14ead91b4
ripemd-160 dc76d8348170904ba94541839831c796846b2068

18561 as geometric shapes

Circle

Radius = n
Diameter 37122
Circumference 116622.20248656
Area 1082312350.1765

Sphere

Radius = n
Volume 26785066042169
Surface area 4329249400.7061
Circumference 116622.20248656

Square

Length = n
Perimeter 74244
Area 344510721
Diagonal 26249.217931207

Cube

Length = n
Surface area 2067064326
Volume 6394463492481
Space diagonal 32148.595039286

Equilateral Triangle

Length = n
Perimeter 55683
Area 149177518.13105
Altitude 16074.297519643

Triangular Pyramid

Length = n
Surface area 149177518.13105
Volume 753594749597.19
Height 8749.7393104023