Properties of the Number 66339

Sixty-Six Thousand Three Hundred Thirty-Nine

Basics

Value: 66338 → 66339 → 66340

Parity: odd

Prime: No

Previous Prime: 66337

Next Prime: 66343

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 7 × 13

Divisors: 1, 3, 7, 9, 13, 21, 27, 39, 63, 81

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001100100011

Octal: 201443

Duodecimal: 32483

Hexadecimal: 10323

Square: 4400862921

Square Root: 257.5635843825753

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

Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y<3z. A212508

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically. A207717

Numbers that are the sum of four third powers in nine or more ways. A345146

Numbers that are the sum of four third powers in exactly nine ways. A345154

a(2·n+1) = 9·a(n), a(2·n+2) = 10·a(n) + a(n-1). A116555

a(n) = n³*sigma₂(n). A386746

Numbers n with property that n and 2n are sums of two distinct positive cubes. A191345

Number of regular polygons that can be drawn with vertices on a centered hexagonal grid with side length n. A339483

Odd numbers divisible by exactly 8 primes (counted with multiplicity). A46321

Series reversion of x - 3·x³. A217363