Properties of the Number -40868

Forty Thousand Eight Hundred Sixty-Eight

Basics

Value: -40869 → -40868 → -40867

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 17 × 601

Divisors: 1, 2, 4, 17, 34, 68, 601, 1202, 2404, 10217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001111110100100

Octal: -117644

Duodecimal: -1B798

Hexadecimal: -9fa4

Square: 1670193424

Square Root: 202.15835377248203

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) = Pell(n) * ∑_d∣n (-1)^n/d / Pell(d), where Pell(n) = A000129(n). A204059

a(n) = a(n-1) + 4·a(n-2) - 2·a(n-3), where a(0) = 2, a(1) = 4, a(2) = 8. A288476

Numbers k such that k⁴⁰⁹⁶ + (k+1)⁴⁰⁹⁶ is prime. A274236

The first Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.1). A292344

Triangle T(n, k) read by rows; given by [1, 1, 1, 1, 1, ...] δ [1, 1, 2, 5, 14, 42, 132, 429, 1430, ...] (A000108) where δ is Deléham's operator defined in A084938. A85843

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CON = CIT-1 H2[B2Si54O112] starting with a T7 atom. A19097