Properties of the Number -140450

One Hundred Forty Thousand Four Hundred Fifty

Basics

Value: -140451 → -140450 → -140449

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 ² × 53 ²

Divisors: 1, 2, 5, 10, 25, 50, 53, 106, 265, 530

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010010010100010

Octal: -422242

Duodecimal: -69342

Hexadecimal: -224a2

Square: 19726202500

Square Root: 374.7665940288702

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

Continued fraction expansion for exp( ∑_n>=1 1/(n·A003500(n)) ), where A003500(n) = (2+sqrt(3))ⁿ + (2-sqrt(3))ⁿ. A174500

Number of perfect matchings in the graph C₄ X C_n. A220864

Number of perfect matchings in the graph C₉ X C_2n. A281583

Numbers n (other than powers of 2) such that abs(abundance(n)) is an odd square. A188484

Numbers k such that σ(k) + τ(k) + φ(k) is a prime, where σ(k) = A000203(k), τ(k) = A000005(k) and φ(k) = A000010(k). A229265

Expansion of ∏_k>=1 1/(1 - x^k)^tau_k(k), where tau_k(k) = number of ordered k-factorizations of k (A163767). A304965

a(n) = -(uⁿ-1)*(vⁿ-1) with u = 2+sqrt(3), v = 2-sqrt(3). A129743