Properties of the Number -280609

Two Hundred Eighty Thousand Six Hundred Nine

Basics

Value: -280610 → -280609 → -280608

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 40087

Divisors: 1, 7, 40087, 280609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000100100000100001

Octal: -1044041

Duodecimal: -116481

Hexadecimal: -44821

Square: 78741410881

Square Root: 529.7254005614607

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

Triangle T, read by rows, where column k of T = column 0 of matrix power T^k+1 for k>0, with column 0 of T = unsigned column 0 of T^-1 (shifted). A152400

Column 1 of triangle A152400; also, column 1 of square array A152405. A152401

Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions {m*(m+1)/2, m>=0} and then taking partial sums, starting with all 1's in row 0. A152405

Coefficients of tribonacci numbers expansion : similar to the Fibonacci number expansion given in Steve Roman's Umbral Calculus. A137431