Properties of the Number 66566

Sixty-Six Thousand Five Hundred Sixty-Six

Basics

Value: 66565 → 66566 → 66567

Parity: even

Prime: No

Previous Prime: 66553

Next Prime: 66569

Digit Sum: 29

Digital Root: 2

Palindrome: Yes

Factorization: 2 × 83 × 401

Divisors: 1, 2, 83, 166, 401, 802, 33283, 66566

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010000000110

Octal: 202006

Duodecimal: 32632

Hexadecimal: 10406

Square: 4431032356

Square Root: 258.00387593987807

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) = floor((n+1/n)⁴). A197603

Consecutive internal states of the linear congruential pseudo-random number generator (421·s + 54773) mod 259200 when started at 1. A383129

Numbers having four 6's in base 10. A43516

McKay-Thompson series of class 26A for Monster. A58596

a(n) = 6*(10^2·n+1-1)/9 - 10ⁿ. A332165

Palindromes of the form k² + 2. A358237

Numbers that when decremented by the sum of their digits produce a square. A66566

In base 10 lunar arithmetic, a(n) is the smallest number than has exactly n different square roots (or -1 if no such number exists). A202174