Properties of the Number 15242

Fifteen Thousand Two Hundred Forty-Two

Basics

Value: 15241 → 15242 → 15243

Parity: even

Prime: No

Previous Prime: 15241

Next Prime: 15259

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 7621

Divisors: 1, 2, 7621, 15242

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101110001010

Octal: 35612

Duodecimal: 89A2

Hexadecimal: 3b8a

Square: 232318564

Square Root: 123.45849504995596

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 multi-directed animals on the triangular lattice. A59715

Ceiling((n+1/n)⁸). A197907

Number of tilings of a 5 X n rectangle using integer-sided rectangular tiles of equal area. A220771

Number of tilings of an 8 X n rectangle using integer-sided rectangular tiles of equal area. A220774

Round((n+1/n)⁸). A198073

Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254905

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 78", based on the 5-celled von Neumann neighborhood. A270093

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 182", based on the 5-celled von Neumann neighborhood. A270632

Number of partitions of n into parts not of the form 23k, 23k+7 or 23k-7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 10 are greater than 1. A35995

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 17. A51982