Properties of the Number -87913

Eighty-Seven Thousand Nine Hundred Thirteen

Basics

Value: -87914 → -87913 → -87912

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 19 × 661

Divisors: 1, 7, 19, 133, 661, 4627, 12559, 87913

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101011101101001

Octal: -253551

Duodecimal: -42A61

Hexadecimal: -15769

Square: 7728695569

Square Root: 296.50126475278313

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

Strong pseudoprimes to base 3. A20229

Composite numbers k == 1, 11 (mod 12) such that 3^(k-1/2) == 1 (mod k). A375917

Strong pseudoprimes to base 11. A20237

Strong pseudoprimes to base 33. A20259

Strong pseudoprimes to base 99. A20325

Composite numbers k such that (1 - w)^k-1 == 1 (mod k) in the ring of Eisenstein integers (w = (-1 + sqrt(3)*i)/2). A329705