Properties of the Number -71243

Seventy-One Thousand Two Hundred Forty-Three

Basics

Value: -71244 → -71243 → -71242

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 191 × 373

Divisors: 1, 191, 373, 71243

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001011001001011

Octal: -213113

Duodecimal: -3528B

Hexadecimal: -1164b

Square: 5075565049

Square Root: 266.91384377735073

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

A transform of the Catalan numbers. A157125

Expansion of ∏_k>=0 (1-x^3·k+1)^3·k+1. A285050

Number of non-equivalent ways (mod D₂) to select 4 points from n equidistant points on a straight line so that no selected point is equally distant from two other selected points. A300761

Number of iterations before a repeated value, or -1 if this never occurs, when starting at k = 1 and repeating k = k·n if k does not contain any adjacent equal digits, else k = k with all adjacent equal digits replaced by a single copy of the same digit. A368940