Properties of the Number -342

Three Hundred Forty-Two

Basics

Value: -343 → -342 → -341

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 19

Divisors: 1, 2, 3, 6, 9, 18, 19, 38, 57, 114

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: -101010110

Octal: -526

Duodecimal: -246

Hexadecimal: -156

Square: 116964

Square Root: 18.49324200890693

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

Generalized Stirling number triangle of first kind read by rows: T(n, k) = [x^k] ∏_m=1..n (x - m - r), with r = 2. A49458

Multiplicative with a(p^e) = 1 - p³. A63453

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

Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = ∑_{d∣n, d==1 (mod 4)} d^k - ∑_{d∣n, d==3 (mod 4)} d^k. A322143

Expansion of 1/(1-x*(1-7·x)). A145976

Matrix inverse of triangle A104505, which is the right-hand side of triangle A084610 of coefficients in (1 + x - x²)ⁿ. A104509

Reversion of g.f. (with constant term included) for partition numbers. A66398

a(n) = 1 - n³. A24001

Partial alternating sums of the sum of the bi-unitary divisors function (A188999). A370904

Inverse of a Fibonacci-Pascal matrix A105809. A105810