Properties of the Number 983

Nine Hundred Eighty-Three

Basics

Value: 982 → 983 → 984

Parity: odd

Prime: Yes

Previous Prime: 977

Next Prime: 991

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 983

Divisors: 1, 983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111010111

Octal: 1727

Duodecimal: 69B

Hexadecimal: 3d7

Square: 966289

Square Root: 31.352830813181765

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

Safe primes p: (p-1)/2 is also prime. A5385

Emirps (primes whose reversal is a different prime). A6567

Wedderburn-Etherington numbers: unlabeled binary rooted trees (every node has outdegree 0 or 2) with n endpoints (and 2n-1 nodes in all). A1190

Primes whose reversal in base 10 is also prime (called "palindromic primes" by David Wells, although that name usually refers to A002385). Also called reversible primes. A7500

Dispersion of (3+[n·r]), where r=(golden ratio)=(1+sqrt(5))/2 and [ ]=floor, by antidiagonals. A191426

Primes of the form 8n+7, that is, primes congruent to -1 mod 8. A7522

Primes of form 10n+3. A30431

Full reptend primes: primes with primitive root 10. A1913

Partial sums of A299274. A299275

Primes p such that A000695(p) are also prime. A152079