Properties of the Number -9842

Eight Hundred Forty-Two

Basics

Value: -9843 → -9842 → -9841

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 19 × 37

Divisors: 1, 2, 7, 14, 19, 37, 38, 74, 133, 259

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -10011001110010

Octal: -23162

Duodecimal: -5842

Hexadecimal: -2672

Square: 96864964

Square Root: 99.20685460188726

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

An inverse Catalan transform of A003462. A106233

a(1)=-1; a(2)=-1; a(3)=-2; a(n) = 4·a(n-1) - 3·a(n-2) for n >= 4. A123183

Expansion of ∏_k>0 theta₃(q^2·k-1)/theta₃(q^2·k), where theta₃() is the Jacobi θ function. A321026

a(n) = (3ⁿ + 1)/2. A7051

a(n) = (n-1)*n*(n+4)/6. A5581

Number of reduced words of length n in the Weyl group D₃₈. A162392

Array read by antidiagonals downwards: T(b,n) = number of words of length n over an alphabet of size b that are in standard order. A278984

Number of set partitions with at most 3 blocks; number of Dyck paths of height at most 4; dimension of space of symmetric polynomials in 3 noncommuting variables. A124302

Dispersion of (3·n-1), read by antidiagonals. A191450

Permutation of natural numbers, the even bisection of A241909 incremented by one and halved; equally, a composition of A241909 and A048673: a(n) = A048673(A241909(n)). A243066