Properties of the Number 55248

Fifty-Five Thousand Two Hundred Forty-Eight

Basics

Value: 55247 → 55248 → 55249

Parity: even

Prime: No

Previous Prime: 55243

Next Prime: 55249

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 1151

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101011111010000

Octal: 153720

Duodecimal: 27B80

Hexadecimal: d7d0

Square: 3052341504

Square Root: 235.04893107606338

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 weakly connected oriented graphs on n labeled nodes. A54941

Surround numbers of an n X 1 rectangle. A60633

Integers n > 1 such that A130280(4n²) < n, i.e., there is an m < n, m > 1 such that 4n²(m² - 1) + 1 is a square. A130281

Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. log(∑_j>=0 k^binomial(j,2) * x^j/j!). A308460

Triangle of partial row sums of triangle A007318(n,m) (Pascal's triangle). Triangle A008949 read backwards. Riordan (1/(1-2x), x/(1-x)). A55248

Stirling numbers of the second kind S(n+4, n). A1298

E.g.f. satisfies: L(x) = x*∑_n>=0 (2ⁿ/n!)*∏_k=0..n-1 L(3^k*x). A177780

Number of nX4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,2,1,0,0 for x=0,1,2,3,4. A197176