Properties of the Number -400729

Four Hundred Thousand Seven Hundred Twenty-Nine

Basics

Value: -400730 → -400729 → -400728

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 19 × 23 × 131

Divisors: 1, 7, 19, 23, 131, 133, 161, 437, 917, 2489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1100001110101011001

Octal: -1416531

Duodecimal: -173AA1

Hexadecimal: -61d59

Square: 160583731441

Square Root: 633.0315947881274

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

Let p = n-th prime of the form 4k+3, take the solution (x,y) to the Pellian equation x² - p·y² = 1 with·and smallest y >= 1; sequence gives value of y. A82394

Denominators of continued fraction convergents to sqrt(239). A41447

Denominators of continued fraction convergents to sqrt(956). A42851