Properties of the Number 66066

Sixty-Six Thousand Sixty-Six

Basics

Value: 66065 → 66066 → 66067

Parity: even

Prime: No

Previous Prime: 66047

Next Prime: 66067

Digit Sum: 24

Digital Root: 6

Palindrome: Yes

Factorization: 2 × 3 × 7 × 11 ² × 13

Divisors: 1, 2, 3, 6, 7, 11, 13, 14, 21, 22

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001000010010

Octal: 201022

Duodecimal: 32296

Hexadecimal: 10212

Square: 4364716356

Square Root: 257.0330718020543

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

Palindromic triangular numbers. A3098

Stirling numbers of the second kind S(n+3, n). A1297

Heinz numbers of integer partitions with the same number of even parts, odd parts, even conjugate parts, and odd conjugate parts. A350947

Numbers whose set of base-10 digits is {0,6}. A204093

Triangle read by rows: T(n,f) is the number of rooted maps with n edges and f faces on an orientable surface of genus 2. A269922

Number of genus 2 rooted maps with 1 face with n vertices. A6298

Triangle read by rows giving number of ways to glue sides of a 2n-gon so as to produce a surface of genus g. A35309

Triangular numbers that contain exactly 2 different digits. A62691

a(1) = 3; a(n) = smallest palindromic multiple of a(n-1). A68665

Cyclops triangular numbers. A160717