Properties of the Number -412

Four Hundred Twelve

Basics

Value: -413 → -412 → -411

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 103

Divisors: 1, 2, 4, 103, 206, 412

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011100

Octal: -634

Duodecimal: -2A4

Hexadecimal: -19c

Square: 169744

Square Root: 20.29778313018444

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

G.f.: Re((i; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1). A278399

Expansion of ∏_k>=1 (1 + x^8·k)/(1 + x^k). A261735

Inverse Euler transform of the Euler totient function φ = A000010. A320778

Expansion of r(q)² / r(q²) in powers of q where r() is the Rogers-Ramanujan continued fraction. A285349

Matrix inverse of triangle A107862. A107865

G.f.: ∏_m>0 (1-x^m+2!*x^2·m). A293072

Expansion of q^-1/8* η(q)⁵* η(q²)³/ η(q⁴)² in powers of q. A128712

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

a(n) = 10ⁿ - n⁹. A24123

a(n) = (n-1)*(n+3) - 2ⁿ + 4. A71099