Properties of the Number 64388

Sixty-Four Thousand Three Hundred Eighty-Eight

Basics

Value: 64387 → 64388 → 64389

Parity: even

Prime: No

Previous Prime: 64381

Next Prime: 64399

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 16097

Divisors: 1, 2, 4, 16097, 32194, 64388

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101110000100

Octal: 175604

Duodecimal: 31318

Hexadecimal: fb84

Square: 4145814544

Square Root: 253.74790639530408

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

Variation (3) on Recamán's sequence (A005132): set s (the step size) initially equal to 2; to get a(n), we first try to subtract s from a(n-1): a(n) = a(n-1)-s if positive and not already in the sequence, in which case we change s to s+1; if not, a(n) = a(n-1)+s+i, where i >= 0 is the smallest number such that a(n-1)+s+i has not already appeared and now we change s to s+i+1. A64388