Properties of the Number -18567

Eighteen Thousand Five Hundred Sixty-Seven

Basics

Value: -18568 → -18567 → -18566

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 2063

Divisors: 1, 3, 9, 2063, 6189, 18567

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100100010000111

Octal: -44207

Duodecimal: -A8B3

Hexadecimal: -4887

Square: 344733489

Square Root: 136.26077939010918

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

Expansion of e.g.f. cos(tan(x))*x, odd terms only. A9071

Expansion of e.g.f.: exp(tanh(x)).x. A9263

T(n,k)=1/16 the number of (n+1)X(k+1) binary arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor. A183811

a(n) = sum of the first n upper twin primes. A86168

Consider the family of multigraphs enriched by the species of involutions. Sequence gives number of those multigraphs with n loops and edges. A99697

Number of squares of all sizes in 3·n*(n+1)/2-ominoes in form of three-quarters of Aztec diamonds. A258440

Positive integers m such that m, m + 1 and m + 2 are a sum of a positive square and a positive cube. A295787

a(n) = ∑_k=1..n k·A088370(n,k). A309371

1/16 the number of (n+1) X 3 binary arrays with no 2 X 2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor. A183804

1/16 the number of (n+1)X8 binary arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor. A183809

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