Properties of the Number -1279

Two Hundred Seventy-Nine

Basics

Value: -1280 → -1279 → -1278

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 1279

Divisors: 1, 1279

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011111111

Octal: -2377

Duodecimal: -8A7

Hexadecimal: -4ff

Square: 1635841

Square Root: 35.76310948449533

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

G.f. A(x) satisfies: A(x) = A(x² - x³)/x. A273218

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 41", based on the 5-celled von Neumann neighborhood. A269875

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 249", based on the 5-celled von Neumann neighborhood. A271015

Primes or negative values of primes of the form 59·n² - 1873·n + 8941 for n>=0. A217604

Mersenne exponents: primes p such that 2^p - 1 is prime. Then 2^p - 1 is called a Mersenne prime. A43

Greater of twin primes. A6512

Toothpick sequence (see Comments lines for definition). A139250

Primes p such that p + 4 is also prime. A23200

Primes p such that 2p-1 is also prime. A5382

Primes of form 10·k + 9. A30433