Properties of the Number 55481

Fifty-Five Thousand Four Hundred Eighty-One

Basics

Value: 55480 → 55481 → 55482

Parity: odd

Prime: No

Previous Prime: 55469

Next Prime: 55487

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 109 × 509

Divisors: 1, 109, 509, 55481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100010111001

Octal: 154271

Duodecimal: 28135

Hexadecimal: d8b9

Square: 3078141361

Square Root: 235.54405108174564

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

Numbers m such that m and m+2 are both brilliant numbers, where brilliant numbers are semiprimes whose prime factors have an equal number of decimal digits, or whose prime factors are equal. A83284

G.f. A(x) satisfies A( x*(1 - x·A(x)) )² = A(x) / (1 - x·A(x)). A383553

Numbers k for which there exists some m such that k = ∑_{i=1..1+floor(log₁₀(k))} binomial(m, d_i), where d_i is the i-th digit of k. A55481

Molien series for complete weight enumerators of self-dual codes over GF(4) + GF(4)u with u² = 0. A92548