Properties of the Number 28415

Twenty-Eight Thousand Four Hundred Fifteen

Basics

Value: 28414 → 28415 → 28416

Parity: odd

Prime: No

Previous Prime: 28411

Next Prime: 28429

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 5683

Divisors: 1, 5, 5683, 28415

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111011111111

Octal: 67377

Duodecimal: 1453B

Hexadecimal: 6eff

Square: 807412225

Square Root: 168.56749390081114

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

Lengths of complete iterations (direct and reverse branches) of the Kolakoski sequence A000002. A249508

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 118", based on the 5-celled von Neumann neighborhood. A278954

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood. A282076

Trajectory of n under the Reverse and Add! operation carried out in base 8 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n. A306596

a(n) is the least number k such that (the binary weight of k) - (the binary weight of k²) = n. A356877

Numbers n such that A193101(n) = 5. A193105

a(n) = (A230624(n)-2)/4. A350607

Minimum number of moves to solve a variant of the first Panex puzzle of order n of transferring a side tower to the center column. A115185

Number of nonnegative integer arrays of length n+2·4-2 with new values introduced in order 0 upwards and every value appearing only in runs of at least 4. A211696

Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..7 array extended with zeros and convolved with -1,2,-1. A222042