Properties of the Number 42806

Forty-Two Thousand Eight Hundred Six

Basics

Value: 42805 → 42806 → 42807

Parity: even

Prime: No

Previous Prime: 42797

Next Prime: 42821

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 17 × 1259

Divisors: 1, 2, 17, 34, 1259, 2518, 21403, 42806

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011100110110

Octal: 123466

Duodecimal: 20932

Hexadecimal: a736

Square: 1832353636

Square Root: 206.89610919492904

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) = (n - 1)*(n² + n - 1). A33445

Number of 3's in n-th term of A006711. A22479

Number of compositions of n into floor(j/3) kinds of j's for all j>=1. A176848

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w²+x²+y²>=n. A211641

Numbers having non-pandigital power of record size (excludes multiples of 10). A217379

Numerators of continued fraction convergents to sqrt(934). A42806

Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101. A259949