Properties of the Number 16618

Sixteen Thousand Six Hundred Eighteen

Basics

Value: 16617 → 16618 → 16619

Parity: even

Prime: No

Previous Prime: 16607

Next Prime: 16619

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 1187

Divisors: 1, 2, 7, 14, 1187, 2374, 8309, 16618

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000011101010

Octal: 40352

Duodecimal: 974A

Hexadecimal: 40ea

Square: 276157924

Square Root: 128.9108218886219

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

Number of gap-free compositions of n. A107428

Number of integer partitions of n whose length times maximum is a multiple of n. A326849

G.f. A(x) satisfies A(x) = 1 + x·abs( 1/A(x) )². A380708

A simple grammar: partial sums of A008965. A52825

Coefficients of the second order mock θ function B(q). A153140

p-INVERT of the positive integers, where p(S) = 1 - 4·S + 2·S². A291183

Number of partitions of n with rank 5 (the rank of a partition is the largest part minus the number of parts). A363214

G.f. A(x) satisfies: A(x) = x + x² * exp( ∑_k>=1 A(x^k)² / k ). A363385

From a nim-like game. A3413

Number of partitions p of n such that 2(number of parts of p) - 2·min(p) is a part of p. A238588