Properties of the Number -2743

Seven Hundred Forty-Three

Basics

Value: -2744 → -2743 → -2742

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13 × 211

Divisors: 1, 13, 211, 2743

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010110111

Octal: -5267

Duodecimal: -1707

Hexadecimal: -ab7

Square: 7524049

Square Root: 52.373657500693994

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(n) = 1 - n³. A24001

G.f.: ∏_k>=1 (1-prime(k)*x^prime(k)). A298159

The y-axis intercept of the line y = n·x + b tangent to the curve y = prime(k), k = 1, 2, 3, .... A232879

Start with 2, then successively subtract the primes 3, 5, 7, ... A282329

a(n) = n³ - 1. A68601

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 24. A51989

Values of n such that L(11) and N(11) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227449

a(1) = 1; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A33680

Numbers whose smallest prime factor is 13. A84970

Non-palindromic balanced numbers (in base 10). A256075