Properties of the Number 66399

Sixty-Six Thousand Three Hundred Ninety-Nine

Basics

Value: 66398 → 66399 → 66400

Parity: odd

Prime: No

Previous Prime: 66383

Next Prime: 66403

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 22133

Divisors: 1, 3, 22133, 66399

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101011111

Octal: 201537

Duodecimal: 32513

Hexadecimal: 1035f

Square: 4408827201

Square Root: 257.68003415088253

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

Quotient of the decimal representation of concatenated twin primes in reverse divided by 3. A129910

Number of Dyck paths of semilength n such that the maximal number of peaks per level equals five. A288746

Smallest Boolean functions from big equivalence classes representing monotone functions (subsequence of A227723). A349743

From reversion of e.g.f. for squares. A66399

a(1) = 1, a(2) = 2; for n>2, a(n) is the smallest number not already used which is a multiple of the product of the most frequently occurring distinct prime factors in a(n-1). A337182