Properties of the Number 1983

One Thousand Nine Hundred Eighty-Three

Basics

Value: 1982 → 1983 → 1984

Parity: odd

Prime: No

Previous Prime: 1979

Next Prime: 1987

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 661

Divisors: 1, 3, 661, 1983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11110111111

Octal: 3677

Duodecimal: 1193

Hexadecimal: 7bf

Square: 3932289

Square Root: 44.53088815642464

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

Perrin sequence (or Perrin numbers, or Ondrej Such sequence): a(n) = a(n-2) + a(n-3) with a(0) = 3, a(1) = 0, a(2) = 2. A1608

Number of partitions of n into Fibonacci parts (with a single type of 1). A3107

a(n) = 2·n² + 2·n - 1. A142463

Numbers k such that 2^k - 7 is prime. A59609

a(n) = n² + n + 3. A27688

Binary expansion contains a single 0. A30130

Partial sums of A000219. A91360

Numbers n such that n!10 + 2 is prime. A204657

Number of integer partitions of n containing all of their distinct multiplicities. A325705

Number of 3-line partitions of n. A991