Properties of the Number -408

Four Hundred Eight

Basics

Value: -409 → -408 → -407

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 17

Divisors: 1, 2, 3, 4, 6, 8, 12, 17, 24, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: -110011000

Octal: -630

Duodecimal: -2A0

Hexadecimal: -198

Square: 166464

Square Root: 20.199009876724155

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 1/(1 + 2·x - x²). A77985

Expansion of k(q) = r(q) * r(q²)² in powers of q where r() is the Rogers-Ramanujan continued fraction. A112274

a(n) = A353750(n) - A353749(n). A353757

G.f.: Im((i·x; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1). A292043

Row sums of array A128503 (second convolution of Chebyshev's S(n,x) = U(n,x/2) polynomials). A128504

Expansion of ψ(x⁴) / φ(x) in powers of·where φ(), ψ() are Ramanujan θ functions. A210063

Expansion of 1/(1+4·x*c(x)), c(x) the g.f. of Catalan numbers A000108. A126986

McKay-Thompson series of class 10B for the Monster group with a(0) = -4. A132040

Expansion of ∏_k>=1 (1 - 3·x^k). A292128

Expansion of ∑_k>0 x^3·k/(1+x^k)³. A363615