Properties of the Number -17965

Seventeen Thousand Nine Hundred Sixty-Five

Basics

Value: -17966 → -17965 → -17964

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 3593

Divisors: 1, 5, 3593, 17965

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100011000101101

Octal: -43055

Duodecimal: -A491

Hexadecimal: -462d

Square: 322741225

Square Root: 134.03357788255897

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

Ordered hypotenuses of primitive Pythagorean triangles having legs that add up to a square. A88319

a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n. A131109

Composites whose prime factorization in base 4 is an anagram of the number in base 4. A260048

Number of 9-line partitions of n (i.e., planar partitions of n with at most 9 lines). A225199

T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly two elements. A282838

Square array A(n, k) = A048720(A065621(σ((2n-1)²)), σ((2k-1)²)), read by falling antidiagonals, (1,1), (1,2), (2,1), (1,3), (2,2), (3,1), etc. A379221

Average of squares of successive primes: a(n) = (prime(n+1)² + prime(n)²)/2, with n >= 2. A75892

a(n) = number of n-digit terms in A108571. A127007

Least semiprime m such that the next semiprime is m + A215231(n). A215232

a(n) = smallest number > a(n-1) such that a(1)*a(2)*...*a(n) + 1 and a(1)*a(2)*...*a(n) - 1 are primes. A51956