Properties of the Number 66911

Sixty-Six Thousand Nine Hundred Eleven

Basics

Value: 66910 → 66911 → 66912

Parity: odd

Prime: No

Previous Prime: 66889

Next Prime: 66919

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 13 × 5147

Divisors: 1, 13, 5147, 66911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010101011111

Octal: 202537

Duodecimal: 3287B

Hexadecimal: 1055f

Square: 4477081921

Square Root: 258.6716064820412

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

a(n) = a(n-1) + a(n - 1 minus the number of terms of a(k) == (mod 4) so far). A60731

Sum of primes < n that do not divide n. A66911