Properties of the Number 8681

Eight Thousand Six Hundred Eighty-One

Basics

Value: 8680 → 8681 → 8682

Parity: odd

Prime: Yes

Previous Prime: 8677

Next Prime: 8689

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 8681

Divisors: 1, 8681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000111101001

Octal: 20751

Duodecimal: 5035

Hexadecimal: 21e9

Square: 75359761

Square Root: 93.17188417113823

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

Primes that do not contain any other prime as a proper substring. A33274

Primes congruent to 1 mod 31. A142005

Primes p whose reciprocal has period (p-1)/10. A56215

Number of ordered triples (i,j,k) with |i|, |j|, |k|, |i·j*k| <= n. A226359

Where the prime race among 9k+1, ..., 9k+8 changes leader. A297407

Primes p such that A001175(p) = (p-1)/4. A308789

T(n,k)=Number of arrangements of n+3 numbers in 0..k with each number being the sum mod (k+1) of three others. A183892

Primes having only {1, 6, 8} as digits. A385782

Primes p of the form 4k+1 for which s=17 is the least positive integer such that sp-(floor(sqrt(sp)))² is a square. A145049

Primes of the form abs(-66n³ + 3845n² - 60897n + 251831) in order of increasing nonnegative n. A272438