Properties of the Number -771

Seven Hundred Seventy-One

Basics

Value: -772 → -771 → -770

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 257

Divisors: 1, 3, 257, 771

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100000011

Octal: -1403

Duodecimal: -543

Hexadecimal: -303

Square: 594441

Square Root: 27.76688675382964

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

Expansion of ∑_k>=0 k·x^k/(1 + k² * x). A349859

a(1) = 1; a(n+1) = -∑_d∣n a(d)^n/d. A307781

First term of n-th difference sequence of (floor(k·r)), r = sqrt(1/2), k >= 0. A325729

a(1) = 1, a(2n) = a(2n-1) + c(n) and a(2n+1) = a(2n) - p(n), where c(n)=A002808(n) and p(n)=A000040(n) are the n-th composite and n-th prime numbers, respectively. A73891

Triangle of polynomial coefficients of the polynomial factors defined in A074051. A197184

Values of n such that L(7) and N(7) 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. A226927

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 169", based on the 5-celled von Neumann neighborhood. A270464

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 467", based on the 5-celled von Neumann neighborhood. A272321

Binary palindromes: numbers whose binary expansion is palindromic. A6995

Sierpiński's triangle (Pascal's triangle mod 2) converted to decimal. A1317