Properties of the Number 727

Seven Hundred Twenty-Seven

Basics

Value: 726 → 727 → 728

Parity: odd

Prime: Yes

Previous Prime: 719

Next Prime: 733

Digit Sum: 16

Digital Root: 7

Palindrome: Yes

Factorization: 727

Divisors: 1, 727

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011010111

Octal: 1327

Duodecimal: 507

Hexadecimal: 2d7

Square: 528529

Square Root: 26.962937525425527

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

Palindromic primes: prime numbers whose decimal expansion is a palindrome. A2385

Primes p such that 2p-1 is also prime. A5382

Number of strict knapsack partitions of n. A275972

Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits. A19546

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

Start with 1 and repeatedly reverse the decimal digits and add 4 to get the next term. A117828

Primes p such that the decimal expansion of its base-9 conversion is also prime. A65727

Irregular primes: primes p such that at least one of the numerators of the Bernoulli numbers B₂, B₄, ..., B_p-3 (A000367) is divisible by p. A928

Primes of form 10n+7. A30432