Properties of the Number -7685

Six Hundred Eighty-Five

Basics

Value: -7686 → -7685 → -7684

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 29 × 53

Divisors: 1, 5, 29, 53, 145, 265, 1537, 7685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111000000101

Octal: -17005

Duodecimal: -4545

Hexadecimal: -1e05

Square: 59059225

Square Root: 87.66413177577246

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

Column 1 of triangle A091614. A91623

Hankel transform of expansion of 1/c(x)³, c(x) the g.f. of A000108. A144701

a(n) = (-1)ⁿ*n*(n+1)*(2·n-5)/6. A167386

Number of necklaces with n beads of 2 colors, allowing turning over (these are also called bracelets). A29

Numbers m that are the hypotenuse of exactly 13 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 13 ways. A97102

Composite numbers such that the square mean of their prime factors is a nonprime integer (where the prime factors are taken with multiplicity and the square mean of c and d is sqrt((c²+d²)/2)). A134602

Let f(k) = exp(π*sqrt(k)); sequence gives numbers k such that ceiling(f(k)) - f(k) < 1/10³. A127022

Products of three distinct primes that form an arithmetic progression. A262723

For any number n take the polynomial formed by the product of the terms (x-π), where π's are the prime factors of n. Then calculate the area between the minimum and the maximum value of the prime factors. This sequence lists the numbers for which the area is equal to zero. A203614

a(n) = (1/6)*(2·n - 3)*(n + 2)*(n + 1). A58373