Properties of the Number 28148

Twenty-Eight Thousand One Hundred Forty-Eight

Basics

Value: 28147 → 28148 → 28149

Parity: even

Prime: No

Previous Prime: 28123

Next Prime: 28151

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 31 × 227

Divisors: 1, 2, 4, 31, 62, 124, 227, 454, 908, 7037

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110110111110100

Octal: 66764

Duodecimal: 14358

Hexadecimal: 6df4

Square: 792309904

Square Root: 167.7736570502056

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 ways to place 3 nonattacking knights on a 3 X n board. A172212

Dying rabbits: a(0) = 1; for 1 <= n <= 12, a(n) = Fibonacci(n); for n >= 13, a(n) = a(n-1) + a(n-2) - a(n-13). A44

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 371", based on the 5-celled von Neumann neighborhood. A271456

Start with {2} and close under the operations XY and XY+1; sequence gives complete list of numbers that do not appear. A93906

Expansion of 1/((1-4x)(1-7x)(1-8x)(1-12x)). A28148