Properties of the Number 56785

Fifty-Six Thousand Seven Hundred Eighty-Five

Basics

Value: 56784 → 56785 → 56786

Parity: odd

Prime: No

Previous Prime: 56783

Next Prime: 56807

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 41 × 277

Divisors: 1, 5, 41, 205, 277, 1385, 11357, 56785

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101110111010001

Octal: 156721

Duodecimal: 28A41

Hexadecimal: ddd1

Square: 3224536225

Square Root: 238.29603437741048

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Ordered hypotenuses of primitive Pythagorean triangles having legs that add up to a square. A88319

Octanacci numbers. A123526

Approximation of the 7-adic integer exp(-7) up to 7ⁿ. A309905

G.f.: exp( ∑_n>=1 A055457(n) * 5^A055457(n) * xⁿ/n ) where 5^A055457(n) exactly divides 5·n. A195761

Number of length n+2 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs. A256817

Number of (n+3)X(3+3) 0..1 arrays with each row and column divisible by 13, read as a binary number with top and left being the most significant bits. A262484

Numbers k such that 7·10^k - 23 is prime. A272271

Centered square numbers which are sphenic numbers. A380882

Number of polydominoes. A56785

T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row and column divisible by 13, read as a binary number with top and left being the most significant bits. A262488