Properties of the Number 49897

Forty-Nine Thousand Eight Hundred Ninety-Seven

Basics

Value: 49896 → 49897 → 49898

Parity: odd

Prime: No

Previous Prime: 49891

Next Prime: 49919

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 41 × 1217

Divisors: 1, 41, 1217, 49897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100001011101001

Octal: 141351

Duodecimal: 24A61

Hexadecimal: c2e9

Square: 2489710609

Square Root: 223.37636401374252

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

Numerators of coefficients in function a(x) such that a(a(x)) = arctan(x). A48605

Least positive integer m such that prime(m+n) divides the m-th Fibonacci number F(m) given by A000045. A248628

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 465", based on the 5-celled von Neumann neighborhood. A272316

Expansion of e.g.f. exp(exp(3·x)/3 - exp(2·x)/2 + 1/6). A355398

Numbers k such that A234575(k,s) = s² where s = A007953(k). A358034

Arctan(x·cos(x)) = ∑_{n >= 0} a(n)*x²ⁿ⁺¹/(2n+1)!. A191512

a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = 2^p+1 + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = a(2) = 1 and a(3) = 4. A49897