Properties of the Number -16668

Sixteen Thousand Six Hundred Sixty-Eight

Basics

Value: -16669 → -16668 → -16667

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 463

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 463

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000100011100

Octal: -40434

Duodecimal: -9790

Hexadecimal: -411c

Square: 277822224

Square Root: 129.10460874810008

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

Lower triangular matrix T, read by rows, such that the row sums of Tⁿ form the n-dimensional partitions. A96651

Column with index 5 of triangle A096651: a(n) = A096651(n+5,5). A96645

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

Numbers k such that numerator(Bernoulli(2·k)/(2·k)) is different from numerator(Bernoulli(2·k)/(2·k*(2·k-1))). A90495

G.f. satisfies A(x) = (1 + x·A(x)²) * (1 + x²*A(x)⁶). A200718

Recurrence sequence based on positions of digits in decimal places of φ, the Golden Ratio = (1+sqrt(5))/2. A98324

Number of partitions of n such that (number parts having multiplicity 1) is not a part and (number of parts > 1) is a part. A241512

Numbers k such that 2^k + 2·k + 1 is prime. A301634

Number of unlabeled 3-element intersecting families (with not necessarily distinct sets) of an n-element set. A55484

a(n) = 6*(n - 1)*(81·n - 104) for n >= 1. A304837