Properties of the Number -21382

Twenty-One Thousand Three Hundred Eighty-Two

Basics

Value: -21383 → -21382 → -21381

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 10691

Divisors: 1, 2, 10691, 21382

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001110000110

Octal: -51606

Duodecimal: -1045A

Hexadecimal: -5386

Square: 457189924

Square Root: 146.22585270737866

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

Triangular array read by rows. T(n,k) is the number of sets of exactly k distinct binary words with a total of n letters. A208741

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 94 ones. A31862

Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order. A222504