Properties of the Number -681318

Six Hundred Eighty-One Thousand Three Hundred Eighteen

Basics

Value: -681319 → -681318 → -681317

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 11 × 31 × 37

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 27, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100110010101100110

Octal: -2462546

Duodecimal: -28A346

Hexadecimal: -a6566

Square: 464194217124

Square Root: 825.4198931453009

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

Kaprekar numbers: numbers k such that k = q + r and k² = q·10^m + r, for some m >= 1, q >= 0 and 0 <= r < 10^m. Here q and r must both have the same number of digits. A45913

The full list of 6-Kaprekar numbers. A53397

Square roots of terms in A238237. A290449

Kaprekar numbers (A006886) that are divisible by the sum of their digits. A382165