Properties of the Number 18224

Eighteen Thousand Two Hundred Twenty-Four

Basics

Value: 18223 → 18224 → 18225

Parity: even

Prime: No

Previous Prime: 18223

Next Prime: 18229

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 17 × 67

Divisors: 1, 2, 4, 8, 16, 17, 34, 67, 68, 134

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100011100110000

Octal: 43460

Duodecimal: A668

Hexadecimal: 4730

Square: 332114176

Square Root: 134.99629624548965

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 k⁴⁰⁹⁶ + 1 is prime (a generalized Fermat prime). A88362

Numbers k such that k + 1 has one more divisor than k. A55927

Lesser of two consecutive numbers each divisible by a fourth power. A68782

Numbers which are representable as a sum of seventeen but no fewer consecutive nonnegative integers. A270302

Expansion of f(q) * f(q⁵) / φ(-q²)² in powers of q where f(), φ() are Ramanujan θ functions. A145722

Eight times hexagonal numbers: a(n) = 8·n*(2·n-1). A152750

a(n) = (A091137(n)/n!) * Integral_u=-1..1 u*(u+1)*...*(u+n-1) du. A195287

a(n) is the smallest number m with n divisors such that m + 1 has n + 1 divisors; or 0 if no such number exists. A343144

Pisot sequence L(8,9). A48590

a(0)=1, a(n) = 8·n*(2·n-1). A67239