Properties of the Number -12830

Twelve Thousand Eight Hundred Thirty

Basics

Value: -12831 → -12830 → -12829

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 1283

Divisors: 1, 2, 5, 10, 1283, 2566, 6415, 12830

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -11001000011110

Octal: -31036

Duodecimal: -7512

Hexadecimal: -321e

Square: 164608900

Square Root: 113.26958991715296

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

Smallest even k such that the pair {k-3,k-1} is not a twin prime pair and lpf(k-1) > lpf(k-3) >= prime(n), where lpf = least prime factor (A020639). A242720

a(n) = sum of lengths of strings that can be generated by any starting string of n 2's and 3's, using the rule described in the Comments lines. A94005

Related to Pisano periods: numbers n such that there are n+10 distinct Fibonacci numbers mod n. A229467

Expansion of ∏_k>=0 1/(1-x^4·k+1)⁴. A261636

Number of binary strings of length n with no substrings equal to 0000 0110 or 1001. A164439

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 1), (0, -1), (1, -1), (1, 1)}. A151414

Least even k such that sfdf(k-1) > sfdf(k-3) >= A050376(n), where sfdf(n) is the smallest Fermi-Dirac factor of n (A223490), and k-3 is not the lesser of a pair of Fermi-Dirac twin primes (A229064). A244412

Numbers m such that the decimal digits of m are exactly the same as those of all the indices corresponding to the prime factors of m. A287916

Numbers k such that (44·10^k - 719)/9 is prime. A295968