Properties of the Number -878

Eight Hundred Seventy-Eight

Basics

Value: -879 → -878 → -877

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: Yes

Factorization: 2 × 439

Divisors: 1, 2, 439, 878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101101110

Octal: -1556

Duodecimal: -612

Hexadecimal: -36e

Square: 770884

Square Root: 29.631064780058107

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) = -2·n² + 12·n - 14. A147973

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 8. A60027

Real parts of the recursive sequence a(n+2) = ∑_k=0..n binomial(n,k)*a(k)*a(n+1-k), with a(0)=2, a(1)=i. A289084

Expansion of (ψ(-q) / f(q³))² in powers of q where ψ(), f() are Ramanujan θ functions. A262930

Expansion of χ(-q) * χ(q⁹) / (χ(q) * χ(-q⁹)) in powers of q where χ() is a Ramanujan θ function. A260215

Optimal ascending continued fraction expansion of sqrt(43) - 6. A228932

Inverse binomial transform of A141425. A141532

Expansion of η(q)³ * η(q⁵)⁹ in powers of q. A227901

Table, read by rows, of coefficients of characteristic polynomials of almost prime matrices. A131175

Numerator of Hermite(n, 1/21). A159705