Properties of the Number -823

Eight Hundred Twenty-Three

Basics

Value: -824 → -823 → -822

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 823

Divisors: 1, 823

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100110111

Octal: -1467

Duodecimal: -587

Hexadecimal: -337

Square: 677329

Square Root: 28.687976575562104

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

Expansion of ∏_k>=1 (1 + x^3·k)^3·k / (1 + x^k)^k. A285294

Expansion of g.f.: 1/(∑_{p odd prime} x^p)² (even powers only). A351317

Cube of the Steinbach matrix as a characteristic polynomial triangular array. A122185

Greater of twin primes. A6512

Primes p such that p + 4 is also prime. A23200

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

Number of partitions of n into distinct parts in which the number of parts divides n. A102627

Primes of form 10n+3. A30431

Primes of the form 7x²+4xy+52y². A140633

Initial members of prime triples (p, p+4, p+6). A22005