Properties of the Number -1342

Three Hundred Forty-Two

Basics

Value: -1343 → -1342 → -1341

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 11 × 61

Divisors: 1, 2, 11, 22, 61, 122, 671, 1342

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100111110

Octal: -2476

Duodecimal: -93A

Hexadecimal: -53e

Square: 1800964

Square Root: 36.6333181680284

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.: ∏_i>=1 (1 - 2*(-x)ⁱ)/(1 - (-x)ⁱ)². A104510

Triangular sequence of coefficients of a polynomial recursion for C_n and B_n Cartan matrices: p(x, n) = (-2 + x)*p(x, n - 1) - p(x, n - 2) p(x,n)=x2-4·x+4-m:m=4;(related sequence: A_n:m=1,G_n,m=3,B_n,C_n,m=2) This triangular sequence is an extension to the Cartan pattern of matrices. A136329

a(n) = ∑_k=1..n k·floor(n/k); also ∑_k=1..n σ(k) where σ(n) = sum of divisors of n (A000203). A24916

Euler transform of Fibonacci numbers. A166861

a(n) = n³ + n. A34262

Decimal representation of permutations of lengths 1, 2, 3, ... arranged lexicographically. A30299

Numbers k such that k⁵¹² + 1 is prime. A57465

Numbers k such that 2^k + 9 is prime. A57196

Number of partitions of n into at most 5 parts. A1401

Numbers n such that Bernoulli number B_n has denominator 138. A271635