Properties of the Number -72001

Seventy-Two Thousand One

Basics

Value: -72002 → -72001 → -72000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 89 × 809

Divisors: 1, 89, 809, 72001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001100101000001

Octal: -214501

Duodecimal: -35801

Hexadecimal: -11941

Square: 5184144001

Square Root: 268.33002068348594

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) = 80·n² + 1. A158776

Constant term in the reduction by (x² -> x+1) of the polynomial C(n)*xⁿ, where C=A022095. A192916

Number of nX2 0,1 arrays with the row and column sums nondecreasing. A202554

Semiprimes of the form 5·n² + 1. A212707