Properties of the Number -6664

Six Hundred Sixty-Four

Basics

Value: -6665 → -6664 → -6663

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 7 ² × 17

Divisors: 1, 2, 4, 7, 8, 14, 17, 28, 34, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101000001000

Octal: -15010

Duodecimal: -3A34

Hexadecimal: -1a08

Square: 44408896

Square Root: 81.6333265278342

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

Boustrophedon transform of all-1's sequence. A667

Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion. A51003

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232839

Number T(n,k) of self-inverse permutations p on [n] where the maximal displacement of an element equals k: k = max_i=1..n |p(i)-i|; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A238889

Numbers in which 6 outnumbers all other digits together. A292736

Numbers n such that sopf(φ(n)) = φ(sopf(n)), where sopf(x) = sum of the distinct prime factors of x. A76531

Connell (5,3)-sum sequence (partial sums of the (5,3)-Connell sequence). A122795

Numbers with digits 4 and 6 only. A284634

Expansion of ∑_k>0 x^3·k/(1-x^k)⁴. A363607

Number of partitions of n into parts not of the form 13k, 13k+6 or 13k-6. Also number of partitions with at most 5 parts of size 1 and differences between parts at distance 5 are greater than 1. A35954