Properties of the Number 55545

Fifty-Five Thousand Five Hundred Forty-Five

Basics

Value: 55544 → 55545 → 55546

Parity: odd

Prime: No

Previous Prime: 55541

Next Prime: 55547

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 23 ²

Divisors: 1, 3, 5, 7, 15, 21, 23, 35, 69, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100011111001

Octal: 154371

Duodecimal: 28189

Hexadecimal: d8f9

Square: 3085247025

Square Root: 235.67986761707076

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 ways to select 4 numbers from the set of the first n natural numbers avoiding 3-term arithmetic progressions. A300760

Numbers having four 5's in base 10. A43512

Moving the rightmost digit of a number to place it furthest to the left adds 9 to the number. A363820

Number of 5-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero. A208826

a(n) is the smallest number which can be represented as the sum of n distinct centered n-gonal numbers in exactly n ways, or -1 if no such number exists. A352975

Number of unlabeled matroids on n points. A55545

O.g.f. A(x) satisfies: [xⁿ] exp( n*(n+2) * x ) / A(x) = 0 for n>0. A304863