Properties of the Number 66699

Sixty-Six Thousand Six Hundred Ninety-Nine

Basics

Value: 66698 → 66699 → 66700

Parity: odd

Prime: No

Previous Prime: 66697

Next Prime: 66701

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7411

Divisors: 1, 3, 9, 7411, 22233, 66699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010010001011

Octal: 202213

Duodecimal: 32723

Hexadecimal: 1048b

Square: 4448756601

Square Root: 258.26149538791105

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

Decimal part of a(n)^1/2 starts with a 'nine digits' anagram. A34277

Number of intersection points formed by drawing the line segments connecting any two lattice points of an n X m convex lattice polygon written as triangle T(n,m), n >= 1, 1 <= m <= n. A288180

Numbers with digits 6 and 9 only. A284636

Number of (w,x,y,z) with all terms in {1,...,n} and w²>=x·y*z. A212064

Number of solutions to 2·k₁ + 3·k₂ + ... + prime(n)*k_n = 1, where k_i are from {-1,0,1}, i=1..n. A369733

Numbers k such that binomial(2k,k)+1 is prime. A66699