Properties of the Number 68785

Sixty-Eight Thousand Seven Hundred Eighty-Five

Basics

Value: 68784 → 68785 → 68786

Parity: odd

Prime: No

Previous Prime: 68777

Next Prime: 68791

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 5 × 13757

Divisors: 1, 5, 13757, 68785

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110010110001

Octal: 206261

Duodecimal: 33981

Hexadecimal: 10cb1

Square: 4731376225

Square Root: 262.26894593146176

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

Integer nearest to F[4n](S(n)), where F[4n](x) are Fibonacci polynomials and S(n) = ∑_i=0..3 (C(i)*(log(log(A*(B+n²))))ⁱ) (see coefficients A, B, C(i) in comments). A228063

Catalan numbers written backwards. A4096

McKay-Thompson series of class 20B for Monster. A58551

Numbers k such that k-th and (k+1)-st term of A038593 differ by 5. A38636

Number of Cartesian lattice points in or on the circle x² + y² = 10ⁿ. A68785

Number of nX6 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0, 1 or 2 neighboring 1s. A297372