Properties of the Number -16018

Sixteen Thousand Eighteen

Basics

Value: -16019 → -16018 → -16017

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 8009

Divisors: 1, 2, 8009, 16018

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111010010010

Octal: -37222

Duodecimal: -932A

Hexadecimal: -3e92

Square: 256576324

Square Root: 126.56223765404908

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

T(n,m) = number of 1..m integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171275

a(n) is twice the smallest k such that A051686(k) = prime(n). A51692

Twice the positions in A051686 at which new primes appear in that sequence. A51861

Number of 1..n integer arrays v[1..5] of length 5 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..4. A171342

Main diagonal of square arrays A114881 and A249741. A249743

Numbers k such that 3^k + φ(k) is prime. A109887

G.f.: ∑_n=-oo..+oo xⁿ * (1 + xⁿ)ⁿ, an even function. A260361

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 233", based on the 5-celled von Neumann neighborhood. A270978

The number of six-term Egyptian fractions of rational numbers, x/y, 0 < x/y < 1, ordered as below. The sequence is the number of (p,q,r,s,t,u) such that x/y = 1/p + 1/q + 1/r + 1/s + 1/t + 1/u where p, q, r, s, t, and u are integers with p < q < r < s < t < u. A349086

Numbers whose base-5 representation contains exactly three 0's and three 3's. A45202