Properties of the Number -13993

Thirteen Thousand Nine Hundred Ninety-Three

Basics

Value: -13994 → -13993 → -13992

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 1999

Divisors: 1, 7, 1999, 13993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11011010101001

Octal: -33251

Duodecimal: -8121

Hexadecimal: -36a9

Square: 195804049

Square Root: 118.29201156460228

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

Numbers k such that k!3 - 3² is prime, where k!3 = k!!! is a triple factorial number (A007661). A243078

Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+2·x+3·x²)ⁿ. A84608

Triangle read by rows: numerators of the almost-Riordan array ( (3·x - 2 - 2·sqrt(1 - x))/(-x² + 5·x - 2 + 2*(x - 1)*sqrt(1 - x)) | 4/(2*(1 - x)*sqrt(1 - x) + x² - 5·x + 2), (8 - 4·x - 8·sqrt(1 - x))/x ). A389710

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 557", based on the 5-celled von Neumann neighborhood. A283043

Numbers n from which zero or more applications of A003415 will lead to 5. A328115

Triangle read by rows, Xⁿ * [1,0,0,0,...]; where X = a tridiagonal matrix with (1,1,1,...) in the main and subdiagonals and (1,2,3,...) in the subsubdiagonal. A140733

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 66 ones. A31834

Numbers k such that 5·10^k + 3·R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56714

Number of strings of numbers x(i=1..4) in 0..n with sum i·x(i) equal to n·4. A184704