Number 561

Interestingness: 7 · Rank #685 of 1000

Visual representations

Binary image (n×n bits)
Triangular · P3(33) = 561
Hexagonal · P6(17) = 561
31117
Prime factorization

Representations of 561

φξαʹ
५६१

●●●
▃▃▃▃▃

五百六十一
תקסא
𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆
𓏹
.....-.....----

561 in different numeral systems

Binary
1000110001
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
3a9
Hex
Vigesimal
Base-24
n9
Base-36
fl
Negabinary
11001110001

Factorization

Prime factors: 3, 11, 17
Divisors: 1, 3, 11, 17, 33, 51, 187, 561
Sum of divisors other than 561: 303
Product of prime factors: 561 = 3 × 11 × 17

Number-theory characteristics (7)

Triangular Hexagonal Difference of 2 squares Evil number Odd Composite Deficient

Related primes

Number 561 prime
Prime number before 561
Prime number after 561