Properties of the Number -465

Four Hundred Sixty-Five

Basics

Value: -466 → -465 → -464

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 31

Divisors: 1, 3, 5, 15, 31, 93, 155, 465

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010001

Octal: -721

Duodecimal: -329

Hexadecimal: -1d1

Square: 216225

Square Root: 21.563858652847824

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

Expansion of ∏_k>=1 (1 - k·x^k)^k. A266964

Expansion of ∑_k>0 x^2·k/(1+x^k)³. A363022

Square array A(n, k) = A246278(1+n, k) - 2·A246278(n, k), read by falling antidiagonals, where A246278 is the prime shift array. A372562

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * ∑_j=0..n (-k)^n-j * (n-j)^j/j!. A351776

a(n) = a(n-2) - (n-1)*a(n-3), with a(0) = 0, a(1) = 1, a(2) = 2. A122021

Expansion of q^1/4 * (η(q) / η(q³))³ in powers of q. A199659

G.f.: ∏_i>0 1/(∑_j>=0 (-1)^j*j!*x^j·i). A293259

Expansion of ψ(q⁵)/ψ(q) in powers of q where ψ() is a Ramanujan θ function. A116494

Expansion of η(q) * η(q¹⁰)³ / (η(q²) * η(q⁴) * η(q⁵) * η(q²⁰)) in powers of q. A147702

2^floor(log[2](n+1))*(2·n+1)!*Bernoulli(2·n,1/2). A238164