Properties of the Number 49666

Forty-Nine Thousand Six Hundred Sixty-Six

Basics

Value: 49665 → 49666 → 49667

Parity: even

Prime: No

Previous Prime: 49663

Next Prime: 49667

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 19 × 1307

Divisors: 1, 2, 19, 38, 1307, 2614, 24833, 49666

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001000000010

Octal: 141002

Duodecimal: 248AA

Hexadecimal: c202

Square: 2466711556

Square Root: 222.8586996282622

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

G.f.: 1/(1 + x - x² - x³ + x⁴). A199803

Let S be the binary string consisting of the first n digits of (100101)*; a(n) = number of ways of writing S as a product of palindromes. A215255

Trisection 1 of A199803. A199931

Number of nondecreasing -n..n vectors of length 5 whose dot product with some other -n..n vector equals 5. A226344

a(n) = Fibonacci(5·n)/5. A49666

T(n,k)=Number of nondecreasing -k..k vectors of length n whose dot product with some other -k..k vector equals n. A226340

Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal. A237236

Number of nX5 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself. A266098