Properties of the Number 18229

Eighteen Thousand Two Hundred Twenty-Nine

Basics

Value: 18228 → 18229 → 18230

Parity: odd

Prime: Yes

Previous Prime: 18223

Next Prime: 18233

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 18229

Divisors: 1, 18229

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100011100110101

Octal: 43465

Duodecimal: A671

Hexadecimal: 4735

Square: 332296441

Square Root: 135.0148140020198

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

Fourth term of balanced prime quartets: p(m-2)-p(m-3) = p(m-1)-p(m-2) = p(m)-p(m-1). A54803

Dispersion of A047209, (numbers >1 and congruent to 1 or 4 mod 5), by antidiagonals. A191728

Primes of form k² + 4. A5473

Primes of the form p(k)² + q(m)² with k > 0 and m > 0, where p(.) is the partition function (A000041), and q(.) is the strict partition function (A000009). A233346

Primes dividing nonzero terms in A003095: the iterates of x² + 1 starting at 0. A247981

Beginnings of maximal chains of primes with four members (three links). A152867

Last member of a sexy prime quadruple: value of p+18 such that p, p+6, p+12 and p+18 are all prime. A46124

Number of non-equivalent ways to place 4 non-attacking ferses on an n X n board. A278683

Irregular triangular array: every periodic simple continued fraction CF represents a quadratic irrational (c + f·sqrt(d))/b, where b,c,f,d are integers and d is squarefree. Row n of this array shows the distinct values of d as CF ranges through the periodic continued fractions having period an n-tuple of 1s and 2s. A246904

n is prime and digits of n³ include digits of n as substring. A115739