Properties of the Number -1982

Nine Hundred Eighty-Two

Basics

Value: -1983 → -1982 → -1981

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 991

Divisors: 1, 2, 991, 1982

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110111110

Octal: -3676

Duodecimal: -1192

Hexadecimal: -7be

Square: 3928324

Square Root: 44.51965857910413

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

G.f. satisfies: A(A(x)) = A(x)/(1-x), so that the self-COMPOSE transform generates partial sums (A107098). A107097

a(n) = n² + n + 2. A14206

Number of partitions p of n such that n - max(p) is a part of p. A238628

Number of integer partitions of n with an alternating permutation covering an initial interval of positive integers. A345163

Triangle read by rows giving number of arrangements of k dumbbells on 2 X n grid (n >= 0, k >= 0). A46741

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 24. A51965

a(n) = 2·n² + 6·n + 2. A90288

a(1)=1, for n>1, a(n) is the least number > a(n-1) such that the Hamming distance D(a(n-1), a(n)) = 2. A206853

Euler transform of A000332. A391

Sets with a congruence property. A2703