Properties of the Number 743

Seven Hundred Forty-Three

Basics

Value: 742 → 743 → 744

Parity: odd

Prime: Yes

Previous Prime: 739

Next Prime: 751

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 743

Divisors: 1, 743

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100111

Octal: 1347

Duodecimal: 51B

Hexadecimal: 2e7

Square: 552049

Square Root: 27.258026340878022

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

Primes of the form x² + xy + 2y², with·and y nonnegative. A106856

Sophie Germain primes p: 2p+1 is also prime. A5384

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

Primes of the form k² + k + 41. A5846

Numbers k such that 5^k - 4^k is prime. A59802

Number of non-Look-and-Say partitions of n. Number of integer partitions of n such that there is no way to choose a disjoint strict integer partition of each multiplicity. A351293

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

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

Larger member p+4 of cousin primes (p, p+4). A46132

Primes of form 10n+3. A30431