Properties of the Number -65489

Sixty-Five Thousand Four Hundred Eighty-Nine

Basics

Value: -65490 → -65489 → -65488

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 43 × 1523

Divisors: 1, 43, 1523, 65489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1111111111010001

Octal: -177721

Duodecimal: -31A95

Hexadecimal: -ffd1

Square: 4288809121

Square Root: 255.90818666076316

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

a(n) = 4·2ⁿ - 3·n - 5. A109363

Number of subsets of the initial segment of the natural numbers strictly below n which are not self-measuring. Number of subsets S of [n] with S ≠ distset(S). A350105

Number of n X n arrays of squares of integers summing to 4 with every element equal to at least one neighbor. A146089

Number of (n+1) X (2+1) 0..1 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors. A237853

a(1) = 16. For n > 1, a(n) is the position of the first occurrence of a(n-1) after the decimal point in the decimal expansion of π. A247345

Number of n X 3 0..1 arrays with each 1 adjacent to 2 or 4 king-move neighboring 1s. A296034