Properties of the Number 63421

Sixty-Three Thousand Four Hundred Twenty-One

Basics

Value: 63420 → 63421 → 63422

Parity: odd

Prime: Yes

Previous Prime: 63419

Next Prime: 63439

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 63421

Divisors: 1, 63421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111011110111101

Octal: 173675

Duodecimal: 30851

Hexadecimal: f7bd

Square: 4022223241

Square Root: 251.83526361492744

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 abs(1/(36)(n⁶ - 126n⁵ + 6217n⁴ - 153066n³ + 1987786n² - 13055316n + 34747236)) in order of increasing nonnegative n. A272555

Numbers k such that Lucas(2k)/3 is prime. A74304

List of primes p for which pⁿ - 2 is prime for n = 1, 3, and 5. A242517

a(n) = (n⁶ - 126·n⁵ + 6217·n⁴ - 153066·n³ + 1987786·n² - 13055316·n + 34747236)/36. A121888

Prime numbers p such that p +- ((p-1)/7) are primes. A137770

Least k > 2 such that (n^k - 1)/(n-1) is prime, or 0 if no such prime exists. A128164

Coefficient array for certain numerator polynomials N4(n,x), n >= 0 (rising powers of x) used for quadrinomials. A63421

Number of length n+3 0..3 arrays with at most two downsteps in every n consecutive neighbor pairs. A255663