Properties of the Number 80687

Eighty Thousand Six Hundred Eighty-Seven

Basics

Value: 80686 → 80687 → 80688

Parity: odd

Prime: Yes

Previous Prime: 80683

Next Prime: 80701

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 80687

Divisors: 1, 80687

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101100101111

Octal: 235457

Duodecimal: 3A83B

Hexadecimal: 13b2f

Square: 6510391969

Square Root: 284.05457222160675

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

Antidiagonal sums of table A128570. A128579

Primes of the form 3·m² - 1. A89682

Primes of the form 12·n²-1. A143830

Expansion of (1+2·x+4·x²+8·x³)/(1-x-16·x⁵). A98582

Prime numbers whose digit reversal is a powerful(1) number (A001694). A115685

Prime powers that are equal to the sum of the first k prime powers (including 1) for some k. A364947

Number of labeled n-element posets with no 3-element antichain. A80687

Number of nX4 0..2 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..2 introduced in row major order. A241110