Properties of the Number -426

Four Hundred Twenty-Six

Basics

Value: -427 → -426 → -425

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 71

Divisors: 1, 2, 3, 6, 71, 142, 213, 426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101010

Octal: -652

Duodecimal: -2B6

Hexadecimal: -1aa

Square: 181476

Square Root: 20.639767440550294

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

Extrapolation for (n + 1)-st prime made by fitting least-degree polynomial to first n primes. A140119

Expansion of 1 - x/(1 - x²/(1 - x³/(1 - x⁴/(1 - x⁵/(1 - x⁶/(1 - ... - xⁿ/(1 - ...))))))), a continued fraction. A291148

Triangle T(n, k) giving coefficients in expansion of n! * ∑_i=0..n binomial(x - n, i) in powers of x. A54649

Expansion of ∏_k>=1 1/(1+2·x^k). A71109

Expansion of ∏_k>=1 (1/(1 + 2·x^k))^k. A261566

10th differences of primes. A36271

Expansion of 1 / ∑_{k in Z} x^k / (1 - x^5·k+2). A375063

Inverse of a Delannoy related triangle. A113141

Expansion of χ(q⁵) * χ(q¹⁰) / ( χ(q) * χ(q²)) in powers of q where χ() is a Ramanujan θ function. A128763

Triangle read by rows, expansion of 1/(1-2·y*x-x+x²-y·x²). A164976