Properties of the Number 49205

Forty-Nine Thousand Two Hundred Five

Basics

Value: 49204 → 49205 → 49206

Parity: odd

Prime: No

Previous Prime: 49201

Next Prime: 49207

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 757

Divisors: 1, 5, 13, 65, 757, 3785, 9841, 49205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100000000110101

Octal: 140065

Duodecimal: 24585

Hexadecimal: c035

Square: 2421132025

Square Root: 221.82200071228283

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

a(n) = (3ⁿ-1)*(n+1)/4. A261064

Triangle read by rows: T(n,k) is the number of sets of noncrossing paths of size k whose nodes are a subset of n nodes arranged in a circle with one node paths disallowed, 0 <= k <= floor(n/2). A390896

Eighth column of quintinomial coefficients. A64057

Numerator of Bernoulli(n, 1/3). A157799

Numerator of Bernoulli(2n,1/3). A33470

a(n) = ∑_{1 <= x₁, x₂, x₃, x₄ <= n} ( gcd(x₁, n)/gcd(x₁, x₂, x₃, x₄, n) )³. A371628

Number of length n+3 0..4 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth. A248533

a(n)=det(M_n) where M_n is the n X n matrix m(i,j)=1 if σ(i+j) is even, 0 otherwise. A96734

Numbers k such that the equation x² - k·y⁴ = -1 has a solution for which |y| > 2. A356488

Numbers in whose base 3-representation every two consecutive digits and every three consecutive digits are distinct. A369635