Properties of the Number -1485

Four Hundred Eighty-Five

Basics

Value: -1486 → -1485 → -1484

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 11

Divisors: 1, 3, 5, 9, 11, 15, 27, 33, 45, 55

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10111001101

Octal: -2715

Duodecimal: -A39

Hexadecimal: -5cd

Square: 2205225

Square Root: 38.535697735995385

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

Matrix square of Stirling-1 triangle A008275. A39814

Inverse Euler transform of the number of prime factors (with multiplicity) function A001222. A320776

Expansion of (∏_j>=1 (1-(-x)^j) - 1)⁷ in powers of x. A1485

Integer a(n) produces the least nonnegative integer coefficient of xⁿ in the n-th iteration of g.f. A(x). A119817

Expansion of ∏_k>=1 (1 - x^2·k)^2·k/(1 - x^2·k-1)^2·k-1. A281781

Triangle read by rows giving coefficients in Bernoulli polynomials as defined in A001898, after multiplication by the common denominators A001898(n). A100655

T(n, k) = [x^k] ∑_k=0..n Stirling1(n, k)*FallingFactorial(x, k), triangle read by rows, for n >= 0 and 0 <= k <= n. A325872

McKay-Thompson series of class 24f for Monster. A58589

Dirichlet inverse of A342920. A346104

Alternating sum of 9-gonal (or nonagonal) numbers. A266086