Properties of the Number 6389

Six Thousand Three Hundred Eighty-Nine

Basics

Value: 6388 → 6389 → 6390

Parity: odd

Prime: Yes

Previous Prime: 6379

Next Prime: 6397

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 6389

Divisors: 1, 6389

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100011110101

Octal: 14365

Duodecimal: 3845

Hexadecimal: 18f5

Square: 40819321

Square Root: 79.93122043357026

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

Numbers k such that (6^k - 1)/5 is prime. A4062

Number of functional digraphs (digraphs of functions on n nodes where every node has outdegree 1 and loops of length 1 are forbidden). A1373

Primes for which the weight as defined in A117078 is 9 and the gap as defined in A001223 is 8. A118922

Father primes of order 4. A136073

Primes p such that p² +- 30 are also primes. A153119

Smallest prime with digit product 6ⁿ. A91465

Smallest prime q such that (q^p-1)/(q-1) is prime, where p = prime(n); or 0 if no such prime q exists. A123487

Primes of the form 6k - 1 preceding the first-occurrence gaps in A334543. A334544

Numbers that are the sum of nine fifth powers in two or more ways. A345619

Numbers that are the sum of ten fourth powers in exactly six ways. A345858