Properties of the Number 64818

Sixty-Four Thousand Eight Hundred Eighteen

Basics

Value: 64817 → 64818 → 64819

Parity: even

Prime: No

Previous Prime: 64817

Next Prime: 64849

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 13 × 277

Divisors: 1, 2, 3, 6, 9, 13, 18, 26, 39, 78

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111110100110010

Octal: 176462

Duodecimal: 31616

Hexadecimal: fd32

Square: 4201373124

Square Root: 254.5937941113255

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 n X n arrays of squares of integers summing to 34 with every element equal to at least one neighbor. A146549

Subsequence of lesser of 2 terms of A095301 that are 2 apart. A248083

a(n) is the number of n-walks between the vertices 1 and 3 of the Graph on the chalkboard in 'Good Will Hunting', (1997). A187734

Exotic numbers: write n in base 10 as d₁ d₂ ... d_k; sequence gives numbers n which can be obtained by using the digits d₁ ... d_k exactly once, at most one each of the symbols +, -, x, "divided by", sqrt, factorial, ^, together with any number of parentheses. A64818