Properties of the Number -791

Seven Hundred Ninety-One

Basics

Value: -792 → -791 → -790

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 113

Divisors: 1, 7, 113, 791

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100010111

Octal: -1427

Duodecimal: -55B

Hexadecimal: -317

Square: 625681

Square Root: 28.124722220850465

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.: ∑_n=-oo..+oo n·xⁿ * (1 - xⁿ)ⁿ. A291937

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 5. A60024

a(0) = 1, a(1) = 0, a(2) = -1; for n >= 3, a(n) = - a(n-2) + ∑_{primes p with 3 <= p <= n} a(n-p). A2121

Weight 5 level 11 cusp form with complex multiplication by Q(sqrt(11)) and trivial character. A65099

a(n) = A325977(A228058(n)). A389217

Irregular array read by rows in which row n lists the integers k, in ascending order, for which there is a primitive cycle of n positive integers under iteration by the Collatz-like 3x+k function. A226619

a(n) = ∑_{k=0..floor(n/10)} (-1)^k * binomial(n-5·k,5·k). A348310

Denominators of an expansion for π. A1467

a(n) = -(n + 1)*(2·n² + n - 12)/6. A58372

Expansion of (1-2x-5x²-7x³+x⁶)/((1-x)(1-x³)²). A141352