Properties of the Number -289788

Two Hundred Eighty-Nine Thousand Seven Hundred Eighty-Eight

Basics

Value: -289789 → -289788 → -289787

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 42

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 19 × 31 × 41

Divisors: 1, 2, 3, 4, 6, 12, 19, 31, 38, 41

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000110101111111100

Octal: -1065774

Duodecimal: -11B850

Hexadecimal: -46bfc

Square: 83977084944

Square Root: 538.3196076681584

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(n,m), [x·A(x)]^m=sum(n>=m T(n,m)*xⁿ), where A(x) satisfies x·A(x)²= -(2·x*A(x)+sqrt(1-4·x*A(x))-1)/(4·x*A(x)+sqrt(1-4·x*A(x))-1). A188109

Number of nXnXn 0..6 triangular arrays with each element·equal to the number its neighbors equal to 2,4,1,1,1,0,0 for x=0,1,2,3,4,5,6. A203210