Properties of the Number 66320

Sixty-Six Thousand Three Hundred Twenty

Basics

Value: 66319 → 66320 → 66321

Parity: even

Prime: No

Previous Prime: 66301

Next Prime: 66337

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 5 × 829

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001100010000

Octal: 201420

Duodecimal: 32468

Hexadecimal: 10310

Square: 4398342400

Square Root: 257.52669764511796

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

Series for first perpendicular moment of square lattice bond percolation near a wall (eventually goes negative). A56599

A thinks of·in set M; B asks questions: is·in T?; A may lie once but only when true answer is Yes; a(n) is maximal size of M such that B can determine·with <= n questions. A10033

E.g.f.: exp(x) / (2 - exp(4·x))^1/4. A229558

Triangle read by rows: T(n, k) = binomial(n, k)*k^k*(n-k)^n-k-1 k=0..n-1. A66320