Properties of the Number 80829

Eighty Thousand Eight Hundred Twenty-Nine

Basics

Value: 80828 → 80829 → 80830

Parity: odd

Prime: No

Previous Prime: 80819

Next Prime: 80831

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 1283

Divisors: 1, 3, 7, 9, 21, 63, 1283, 3849, 8981, 11547

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011101110111101

Octal: 235675

Duodecimal: 3A939

Hexadecimal: 13bbd

Square: 6533327241

Square Root: 284.3044143167672

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

G.f. satisfies: A(x) = exp( ∑_n>=1 [∑_k=0..3·n binomial(3·n,k)² * x^k] / A(x)ⁿ * xⁿ/n ). A255839

Primes that terminate at 20,10,5 in the 3x-1 problem: Repeat, if·is even divide by 2 else multiply by 3 and subtract 1, until 5 is reached. A80829