Properties of the Number -743

Seven Hundred Forty-Three

Basics

Value: -744 → -743 → -742

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 743

Divisors: 1, 743

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -1011100111

Octal: -1347

Duodecimal: -51B

Hexadecimal: -2e7

Square: 552049

Square Root: 27.258026340878022

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

Values of n such that L(20) and N(20) 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. A227523

Series expansion of the exponential generating function exp(-tridend(-x)) - 1 where tridend(x) = (1 - 3·x - sqrt(1-6·x+x²)) / (4·x) (A001003). A383991

Sequence is {a(5,n)}, where a(m,n) is defined at sequence A110665. A110670

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 473", based on the 5-celled von Neumann neighborhood. A272426

Expansion of x/(1+x-x³-x⁵-x⁶-x⁷-x⁹+x¹¹+x¹²). A143606

Primes of the form x² + xy + 2y², with·and y nonnegative. A106856

Sophie Germain primes p: 2p+1 is also prime. A5384

Emirps (primes whose reversal is a different prime). A6567

Primes of the form k² + k + 41. A5846

Numbers k such that 5^k - 4^k is prime. A59802