16561 (number)

16561 is an odd 5-digits prime number following 16560 and preceding 16562. In scientific notation, it is written as 1.6561 × 10^4. The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors. There are 16560 positive integers (up to 16561) that are relatively prime to 16561.

Interesting facts

Basic properties

Name

Name sixteen thousand five hundred sixty-one

Notation

Scientific notation 1.6561 × 10^4
Engineering notation 1.6561 × 10^3

Prime Factorization of 16561

Prime Factorization 16561

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 16561
Product of the distinct prime numbers

The prime factorization of 16561 is 16561. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 6, 53, 27, 122, 395, 8543, 1920, 87666, 94639, 468096, 972427, 9603696, 7392675, 89813523, 85752161, 472610237, 645798018, 4073307028, 284434881

Basic calculations (n = 16561)

Multiplication

n×y
n×2 33122
n×3 49683
n×4 66244
n×5 82805

Division

n÷y
n÷2 8280.5
n÷3 5520.3333333333
n÷3 4140.25
n÷5 3312.2

Exponentiation

ny
n2 274266721
n3 4542131166481
n4 75222234248091841
n5 1.2457554213826E+21

Nth Root

y√n
2√n 128.68954891521
3√n 25.489551018212
4√n 11.344141612093
5√n 6.9793875021655

Divisors of 16561

1, 16561

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 16562
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 8281
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 128.69343417595
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9998792416375
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 16561 can be divided by 2 positive divisors. The sum of these divisors (counting 16561) is 16562, the average is 8281.

Base conversion 16561

Base System Value
2 Binary 100000010110001
3 Ternary 211201101
4 Quaternary 10002301
5 Quinary 1012221
6 Senary 204401
8 Octal 40261
10 Decimal 16561
12 Duodecimal 9701
16 Hexadecimal 40b1
20 Vigesimal 2181
36 Base36 cs1

Cryptographic Hash Functions

md5 c4319612f21942de0337c7da0997a4d1
sha1 65b7d4a5f6980497eec660d0455820b657102e8f
sha256 ef6127bf0b82cb532e71f583004a59e59d671bfd17f6f7b24f5416d892e5787e
sha512 4e9fdb049244e63cbb45d0962387354b15f2d01adac7ffef745ed7654b8e8799cd27de4b45c55d9e8159aba4b3e7cd0d2b7cce4d0d1dc18d7fea7a6c5e6105f9
ripemd-160 39e119fab6993c529b9238bfb0b723796fd0e044

16561 as geometric shapes

Circle

Radius = n
Diameter 33122
Circumference 104055.8318722
Area 861634315.81776

Sphere

Radius = n
Volume 19026034539011
Surface area 3446537263.271
Circumference 104055.8318722

Square

Length = n
Perimeter 66244
Area 274266721
Diagonal 23420.790806461

Cube

Length = n
Surface area 1645600326
Volume 4542131166481
Space diagonal 28684.493424148

Equilateral Triangle

Length = n
Perimeter 49683
Area 118760973.89933
Altitude 14342.246712074

Triangular Pyramid

Length = n
Surface area 118760973.89933
Volume 535295291476.25
Height 7806.9302688203