Properties of the Number 66626

Sixty-Six Thousand Six Hundred Twenty-Six

Basics

Value: 66625 → 66626 → 66627

Parity: even

Prime: No

Previous Prime: 66617

Next Prime: 66629

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 × 4759

Divisors: 1, 2, 7, 14, 4759, 9518, 33313, 66626

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010001000010

Octal: 202102

Duodecimal: 32682

Hexadecimal: 10442

Square: 4439023876

Square Root: 258.1201270726481

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298240

Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5). A78870

Numbers having four 6's in base 10. A43516

Number of nondecreasing -n..n vectors of length 3 whose dot product with some nondecreasing -n..n vector equals 3. A226411

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298236

Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298238

Concatenation of cubes in increasing order up to the n-th and then in decreasing order. A66626