Properties of the Number -19993

Nineteen Thousand Nine Hundred Ninety-Three

Basics

Value: -19994 → -19993 → -19992

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 19993

Divisors: 1, 19993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111000011001

Octal: -47031

Duodecimal: -B6A1

Hexadecimal: -4e19

Square: 399720049

Square Root: 141.39660533407442

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

Numerators of coefficients in Taylor series for exp(sin(x)). A47687

Primes with either no internal digits or all internal digits are 9. A69684

Number of squares on infinite chessboard at <= n knight's moves from a fixed square. A18836

Partial sums of A151791. A151792

Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(∑_j=1..k x^j). A293669

Primes p such that p's set of distinct digits is {1,3,9}. A108383

Triangle read by rows: T(n,k) is the number of nilpotent subpermutations on an n-set, each of nilpotency index less than or equal to k. A261764

Stable Poincaré series [or Poincare series] for Lie algebra of type A (i.e., the variety of complex k X k matrices with distinct eigenvalues). A98787

Primes containing 999 as a substring. A167292

Smallest prime modulus p such that there exists a multiplicative-coset Ramsey algebra in n colors over Z/pZ, or 0 if no such prime exists. A263308