Properties of the Number 66901

Sixty-Six Thousand Nine Hundred One

Basics

Value: 66900 → 66901 → 66902

Parity: odd

Prime: No

Previous Prime: 66889

Next Prime: 66919

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 149 × 449

Divisors: 1, 149, 449, 66901

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010101010101

Octal: 202525

Duodecimal: 32871

Hexadecimal: 10555

Square: 4475743801

Square Root: 258.65227623200997

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 n such that A229964(n) = 3. A229966

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 99", based on the 5-celled von Neumann neighborhood. A278872

Numbers k such that binomial(2k,k) - k² is prime. A309289

Rectangular array with all start numbers Me(n, k), k >= 1, for the Collatz operation ud^2·n, n >= 1, ending in an odd number, read by antidiagonals. A238475

Let φ(k) determine the x-coordinate and prime(k) the y-coordinate of the point A(k). Sequence gives values of n such that points A(n), A(n+1) and A(n+2) form a right triangle with right angle at A(n+1). A66901