Properties of the Number 28906

Twenty-Eight Thousand Nine Hundred Six

Basics

Value: 28905 → 28906 → 28907

Parity: even

Prime: No

Previous Prime: 28901

Next Prime: 28909

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 97 × 149

Divisors: 1, 2, 97, 149, 194, 298, 14453, 28906

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000011101010

Octal: 70352

Duodecimal: 1488A

Hexadecimal: 70ea

Square: 835556836

Square Root: 170.01764614298128

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

Denominators of convergents to the square root of the golden ratio. A225205

Cycle lengths obtained by repeated application of Klaus Nagel's strip bijection, as described in A307110. A363760

Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^-6. A114358

Length of cycles obtained by repeated application of the strip bijection for the square lattice (A307110), sorted by increasing minimum radius visited by any cycle of this length. A367893

Numbers k such that the continued fraction for sqrt(k) has period 65. A20404

Number of walks within N² (the first quadrant of Z²) starting and ending at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (-1, 1), (0, -1), (0, 1), (1, 1)}. A151367

Arrange digits of primes in descending order. A28906

Odd numbers that are not divisible by two consecutive prime numbers. A356171

Number of ways five L-tiles can be placed on an n X n square. A243648