Properties of the Number 81763

Eighty-One Thousand Seven Hundred Sixty-Three

Basics

Value: 81762 → 81763 → 81764

Parity: odd

Prime: No

Previous Prime: 81761

Next Prime: 81769

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 11 × 7433

Divisors: 1, 11, 7433, 81763

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011111101100011

Octal: 237543

Duodecimal: 3B397

Hexadecimal: 13f63

Square: 6685188169

Square Root: 285.9423018722483

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

Expansion of x*(1+x)/(1-x²-2·x³). A159284

The maximum number of coins that can be processed in n weighings where all coins are real except for one LHR-coin starting in the light state. A279673

Expansion of (1-x)/(1-x²+2·x³). A78028

a(1) = 7 then the smallest number such that the forward as well as the reverse n-th partial concatenation is a prime for n>1. (Reverse concatenation is taken term-wise and not digit-wise). A83994

G.f. x*(x²+1)*(x³-x-1)/((2·x³+x²-1)*(x⁴+1)). A107854

Primes p such that p*(p-1) divides 3^p-1-1. A81763