Properties of the Number 28155

Twenty-Eight Thousand One Hundred Fifty-Five

Basics

Value: 28154 → 28155 → 28156

Parity: odd

Prime: No

Previous Prime: 28151

Next Prime: 28163

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1877

Divisors: 1, 3, 5, 15, 1877, 5631, 9385, 28155

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111111011

Octal: 66773

Duodecimal: 14363

Hexadecimal: 6dfb

Square: 792704025

Square Root: 167.79451719290472

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

Meandric numbers for a river crossing up to 9 parallel roads at n points. A209621

Numbers k such that 2·k+1, 4·k+1, 8·k+1 and 16·k+1 are primes. A124412

a(1) = 1; for n > 1, a(n) = 4·a(A252463(n)) + (n mod 4). A292384

Number of (w,x,y) with all terms in {0,...,n} and w ≠ max(|w-x|,|x-y|,|y-w|). A213498

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 189", based on the 5-celled von Neumann neighborhood. A270679

E.g.f. (even powers only) cos(x)^cos(x-1). A191463

Expansion of 1/((1-4x)(1-8x)(1-9x)(1-10x)). A28155