Properties of the Number 55686

Fifty-Five Thousand Six Hundred Eighty-Six

Basics

Value: 55685 → 55686 → 55687

Parity: even

Prime: No

Previous Prime: 55681

Next Prime: 55691

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 9281

Divisors: 1, 2, 3, 6, 9281, 18562, 27843, 55686

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101100110000110

Octal: 154606

Duodecimal: 28286

Hexadecimal: d986

Square: 3100930596

Square Root: 235.9788126082509

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

Table T(n,k) by antidiagonals. T(n,k) is the number of primitive (=aperiodic) k-ary words with length less than or equal to n (n,k >= 1). A143326

Integers k such that k·28·c + 1 is prime for c = 1, 2, 4, 7 and 14. A67199

Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x. A48132

Number of 4-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187299

Numbers k such that k and k+1 have the same binary XOR of divisors. A227443

Number of (n+2) X (1+2) 0..1 arrays with no 3·3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1. A257440

Number of (n+2) X (4+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00010101 or 01010101. A259738

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 or 01010101. A259742

Numbers k such that 3^k == -1 (mod k-1). A55686