Properties of the Number 18305

Eighteen Thousand Three Hundred Five

Basics

Value: 18304 → 18305 → 18306

Parity: odd

Prime: No

Previous Prime: 18301

Next Prime: 18307

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 7 × 523

Divisors: 1, 5, 7, 35, 523, 2615, 3661, 18305

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011110000001

Octal: 43601

Duodecimal: A715

Hexadecimal: 4781

Square: 335073025

Square Root: 135.2959718543017

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

a(n) = n³ + (n+1)². A100705

Numbers n for which there are exactly seven k such that n = k + (product of nonzero digits of k). A96928

Rectified 5-cell numbers: the coefficient of x^2n-2 in (1+x+x²+ ... + x^n-1)⁵. A179095

G.f. satisfies: A(x) = exp( ∑_n>=1 xⁿ/n * ∏_d∣n A(d·xⁿ) ). A205499

a(n) = n*(n + 1)*(5·n² + 5·n - 4)/12. A264853

Numbers n such that p(12n) is prime, where p(n) is the number of partitions of n. A115214

Number of integer partitions of n with unsortable prime factors. A326332

Number of mobiles (circular rooted trees) with n nodes and 3 leaves. A55341

Array defined in A064643 read from left to right (cf. A107783). A64644

Array defined in A064643 read in direction in which it was created. A107783