Properties of the Number 67666

Sixty-Seven Thousand Six Hundred Sixty-Six

Basics

Value: 67665 → 67666 → 67667

Parity: even

Prime: No

Previous Prime: 67651

Next Prime: 67679

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 23 × 1471

Divisors: 1, 2, 23, 46, 1471, 2942, 33833, 67666

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000100001010010

Octal: 204122

Duodecimal: 331AA

Hexadecimal: 10852

Square: 4578687556

Square Root: 260.126892112292

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

Numbers k such that k and k² use only the digits 4, 5, 6, 7 and 8. A137140

Smallest multiple of A047201(n) (i.e., numbers not divisible by 5) with only digits 6 and 7. A124476

Sum of squares of prime factors of n (counted with multiplicity). A67666