Properties of the Number 55220

Fifty-Five Thousand Two Hundred Twenty

Basics

Value: 55219 → 55220 → 55221

Parity: even

Prime: No

Previous Prime: 55219

Next Prime: 55229

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 11 × 251

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101011110110100

Octal: 153664

Duodecimal: 27B58

Hexadecimal: d7b4

Square: 3049248400

Square Root: 234.98936146132232

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

Number of all polyhedra (tetrahedra of any orientation and octahedra) of any size, formed when intersecting a regular tetrahedron by planes parallel to its sides and dividing its edges into n equal parts. A216175

Number of 3 up, 3 down permutations of [n]. A229884

Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero. A189499

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood. A271804

T(2n+4,n), array T as in A055216. A55220