Properties of the Number 14218

Fourteen Thousand Two Hundred Eighteen

Basics

Value: 14217 → 14218 → 14219

Parity: even

Prime: No

Previous Prime: 14207

Next Prime: 14221

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7109

Divisors: 1, 2, 7109, 14218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11011110001010

Octal: 33612

Duodecimal: 828A

Hexadecimal: 378a

Square: 202151524

Square Root: 119.23925528113634

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

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 10. A31423

E.g.f.: A(x) = 1/[(1 - x²)^{1 + 1/x}]. A193281

Expansion of ∏_k>=1 ((1 + x^k)/(1 - x^k))^φ(k), where φ is the Euler totient function A000010. A318975

Average of terms in n-th row of A077529. A77532

Polynomial expansion sequence: p(x)=1/(1 - 4x + 5x² - 6x⁴ + 6x⁵ - x⁶ - 2x⁷ + x⁸). A143075

Numbers for which the cube of the sum of the digits is equal to the square of the product of their digits. A241846

p-INVERT of (1,0,1,0,0,0,0,...), where p(S) = 1 - S - S² - S³. A291737

Numbers k such that the continued fraction for sqrt(k) has period 73. A20412

Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-1111-1100 pattern in any orientation. A147476

Number of n X n X n 0..6 triangular arrays with each element·equal to the number its neighbors equal to 3,3,2,1,0,0,0 for x=0,1,2,3,4,5,6. A203199