Properties of the Number -666400

Six Hundred Sixty-Six Thousand Four Hundred

Basics

Value: -666401 → -666400 → -666399

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 5 ² × 7 ² × 17

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 17

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100010101100100000

Octal: -2425440

Duodecimal: -281794

Hexadecimal: -a2b20

Square: 444088960000

Square Root: 816.3332652783421

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

Number of ways to place 2 nonattacking queens on an n X n toroidal board. A172517

Numbers n such that every digit of both n and n² contains a loop (only digits 0,4,6,8,9 in n and n²). A107626

Numbers k such that k and k² use only the digits 0, 4, 6, 8 and 9. A136956

Number of minimum connected dominating sets in the n X n torus grid graph. A382530