Properties of the Number 7666

Seven Thousand Six Hundred Sixty-Six

Basics

Value: 7665 → 7666 → 7667

Parity: even

Prime: No

Previous Prime: 7649

Next Prime: 7669

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 3833

Divisors: 1, 2, 3833, 7666

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110111110010

Octal: 16762

Duodecimal: 452A

Hexadecimal: 1df2

Square: 58767556

Square Root: 87.55569655939013

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

Numbers which have only digits 6 and 7 in base 10. A256292

Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion. A51003

Numbers k such that k and k² use only the digits 5, 6, 7, 8 and 9. A137147

Growth series for affine Coxeter group (or affine Weyl group) D₄. A266759

Numbers n for which there are exactly five k such that n = k + (product of nonzero digits of k). A96926

Number of 4 X n 0-1 matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1), (10;0) and (11;0). A99003

T(n,k)=Number of n-step E, S, NW and NE-moving king's tours on a kXk board summed over all starting positions. A187586

Numbers that are the sum of six fourth powers in three or more ways. A345560

Numbers that are the sum of six fourth powers in exactly three ways. A345815

Permutation trees of power n and height k. A179454