Properties of the Number 18466

Eighteen Thousand Four Hundred Sixty-Six

Basics

Value: 18465 → 18466 → 18467

Parity: even

Prime: No

Previous Prime: 18461

Next Prime: 18481

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 1319

Divisors: 1, 2, 7, 14, 1319, 2638, 9233, 18466

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100100000100010

Octal: 44042

Duodecimal: A82A

Hexadecimal: 4822

Square: 340993156

Square Root: 135.88966112254457

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

G.f.: ∏_n>=1 (1 + xⁿ + xⁿ⁺¹). A160571

Numbers n such that if p=prime(n), then p, p+6, p+12, p+18 are consecutive primes with p=6·k+5 for some k, where prime(n) denotes n-th prime. A90835

Number of partitions of n for which 2*(number of distinct parts) > (number of parts). A237365

Expansion of ∏_j>=1 (1 + (-1 + ∏_k>=1 (1 + x^k)^k)^j)^j. A307323

Number of (w,x,y,z) with all terms in {1,...,n} and w<|x-y|+|y-z|. A212692

The Wiener index of the straight pentachain of n pentagonal rings (see Fig. 2.1 in the A. A. Ali et al. reference). A224459

Number of (n+4) X 9 0..1 matrices with each 5 X 5 subblock idempotent. A224687

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 267", based on the 5-celled von Neumann neighborhood. A271085

Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300503

The sum of the numbers that are inside the contour of an n-story Christmas tree drawn at the top of the numerical pyramid containing the positive integers in natural order. A358994