Properties of the Number -1837

Eight Hundred Thirty-Seven

Basics

Value: -1838 → -1837 → -1836

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 11 × 167

Divisors: 1, 11, 167, 1837

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100101101

Octal: -3455

Duodecimal: -1091

Hexadecimal: -72d

Square: 3374569

Square Root: 42.86023798347368

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

Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6·k*(k-1) + 1. A3154

Number of intersections of diagonals in the interior of a regular n-gon. A6561

Concentric hexagonal numbers: floor(3·n²/2). A32528

Numbers k such that k, k+1 and k+2 are products of two primes. A56809

Numbers k such that k, k+1 and k+2 have the same number of divisors. A5238

Generalized 30-gonal (or triacontagonal) numbers: m*(14·m - 13) with m = 0, +1, -1, +2, -2, +3, -3, ... A316729

a(n) = least k such that the remainder when 20^k is divided by k is n. A128160

Number of partitions of n where every part appears more than two times. A100405

Numbers whose binary indices and prime indices have the same sum. A372427

Smallest of three consecutive squarefree numbers k, k+1, k+2 of the form p·q where p and q are distinct primes. A39833