Properties of the Number -1842

Eight Hundred Forty-Two

Basics

Value: -1843 → -1842 → -1841

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 307

Divisors: 1, 2, 3, 6, 307, 614, 921, 1842

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11100110010

Octal: -3462

Duodecimal: -1096

Hexadecimal: -732

Square: 3392964

Square Root: 42.91852746774987

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+2·x)/((1+x+x²)*(1+5·x+x²)). A110307

Expansion of 1/(∑_k>=0 x^k²)². A363774

Number of unlabeled rooted trees with n nodes (or connected functions with a fixed point). A81

Numbers m such that the Bernoulli number B_m has denominator 42. A51228

Numbers that are the sum of 8 positive 6th powers. A3364

Rooted tree triangle read by rows: a(n,k) = number of forests with n nodes and k rooted trees. A33185

Number of compositions of n with weakly increasing differences. A325546

Numbers k such that p(k), p(k)+6, p(k)+12, p(k)+18 are consecutive primes, where p(k) denotes k-th prime. A90832

Indices of squares (of primes) in the semiprimes. A128301

T(n,k) is the number of strings of numbers x(i=1..n) in 0..k with sum i·x(i) equal to k·n. A184703