Properties of the Number 55289

Fifty-Five Thousand Two Hundred Eighty-Nine

Basics

Value: 55288 → 55289 → 55290

Parity: odd

Prime: No

Previous Prime: 55259

Next Prime: 55291

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 13 × 4253

Divisors: 1, 13, 4253, 55289

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101011111111001

Octal: 153771

Duodecimal: 27BB5

Hexadecimal: d7f9

Square: 3056873521

Square Root: 235.1361307838504

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) = ∑_{k=0..floor(n/3)} binomial(n-2·k,k) * binomial(2*(n-3·k),n-3·k). A383581

a(n) = T(3n,n), where T is the array in A026268. A26293

Least k starting a chain or (2n+1)-tuple of consecutive integers {h(k+i)}, i=0,1,...,2n (excluding the trivial chain when h(k) = h(k+1) = ... = h(k+2n)) with symmetrical gaps about the center, where h(k) is the length of the finite set {k, f(k), f(f(k)),...,1} in the Collatz (or 3x + 1) problem. A268468

Column 1 of triangle A055288. A55289