Properties of the Number -469

Four Hundred Sixty-Nine

Basics

Value: -470 → -469 → -468

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 × 67

Divisors: 1, 7, 67, 469

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: -111010101

Octal: -725

Duodecimal: -331

Hexadecimal: -1d5

Square: 219961

Square Root: 21.656407827707714

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) = ∑_k=1..n μ(k)*k². A336276

Triangle c(n,k) of the numerators of coefficients [x^k] P(n,x) of the polynomials P(n,x) of A129891. A140749

Numerators of a semi-convergent series leading to the second Stieltjes constant gamma₂. A262384

G.f.: A(x) = ∑_n=-oo..+oo (x - xⁿ)ⁿ. A290003

a(1) = 1; a(n) = -∑_{d∣n, d < n} A341512(n/d) * a(d), where A341512(n) = σ(n)*A003961(n) - n*σ(A003961(n)). A347096

Expansion of q·f(-q¹, -q⁶)³ / f(-q², -q⁵)² * f(-q³, -q⁴) in powers of q where f() is Ramanujan's two-variable θ function. A305443

Generalized sum of divisors function. A2130

a(n+1) = a(n) - a(floor(n/2)), with a(0)=0, a(1)=1. A62187

Expansion of (1-q)^k/∏_j=1..k (1-q^j) for k=16. A275644

Triangle T(n,k) read by rows: consider the sequence a(m) = a(m-1) + ∑_0<j<=m/n a(m-j·n) with a(0)=1. Row n of T(n,k) is formed by the coefficients of the recurrence relation of sequence b(i) = a(n·i). A113445