Properties of the Number 81343

Eighty-One Thousand Three Hundred Forty-Three

Basics

Value: 81342 → 81343 → 81344

Parity: odd

Prime: Yes

Previous Prime: 81331

Next Prime: 81349

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 81343

Divisors: 1, 81343

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110111111

Octal: 236677

Duodecimal: 3B0A7

Hexadecimal: 13dbf

Square: 6616683649

Square Root: 285.2069424119967

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

a(n) = 2²ⁿ⁺¹*cos(nA), where A is the angle opposite side BC in a triangle ABC having sidelengths |BC|=2, |CA| = 3, |AB| = 4; ABC is the smallest integer-sided scalene triangle. A375880

a(n) = 2ⁿ⁺¹*cos(n·arctan(sqrt(15))). A272931

Primes resulting from procedure described in A048393. A48394

Numbers k such that 3⁸*2^k - 1 is prime. A212311

a(n) = (10ⁿ + 4ⁿ)/2. A81343