Properties of the Number 55626

Fifty-Five Thousand Six Hundred Twenty-Six

Basics

Value: 55625 → 55626 → 55627

Parity: even

Prime: No

Previous Prime: 55621

Next Prime: 55631

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 73 × 127

Divisors: 1, 2, 3, 6, 73, 127, 146, 219, 254, 381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101100101001010

Octal: 154512

Duodecimal: 28236

Hexadecimal: d94a

Square: 3094251876

Square Root: 235.85164828764712

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 k such that k² contains every digit at least once. A54038

Number of solutions to +- 1 +- 2² +- 3² +- 4² +- ... +- n² = 0. A158092

Numbers n such that n² contains every decimal digit exactly once. A156977

Number of solutions to +-1² +- 2² +- 3² +- ... +- n² = 0 or 1. A350403

Total area of all trapezoids with bases p+q, q-p and height p·q with p,q prime, n = p+q and p < q. A335187

Fourth differences of Catalan numbers (A000108). A228339

First prime starting a chain of exactly n consecutive primes congruent to 5 modulo 6. A55626

a(n) = ∑_{k = 0..n-1} binomial(n,k)²*binomial(n+k-1,k). A361715