Properties of the Number 54561

Fifty-Four Thousand Five Hundred Sixty-One

Basics

Value: 54560 → 54561 → 54562

Parity: odd

Prime: No

Previous Prime: 54559

Next Prime: 54563

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 1399

Divisors: 1, 3, 13, 39, 1399, 4197, 18187, 54561

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101010100100001

Octal: 152441

Duodecimal: 276A9

Hexadecimal: d521

Square: 2976902721

Square Root: 233.5829617073985

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

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 3 + 3·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 2·x - x². A367301

Pseudoprimes to base 7, written in base 7. A262104

Pisot sequence L(2,7). A48576

Irregular triangle read by rows: T(n,k) is the number of permutations in C_n (= the 1-cycles in S_n) having k stretching pairs. A216121

Powers of three read in base 2. A211864

Number of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 12 1-simplexes. A54561