Properties of the Number -91999

Ninety-One Thousand Nine Hundred Ninety-Nine

Basics

Value: -92000 → -91999 → -91998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 197 × 467

Divisors: 1, 197, 467, 91999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10110011101011111

Octal: -263537

Duodecimal: -452A7

Hexadecimal: -1675f

Square: 8463816001

Square Root: 303.313369306399

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) = ∑_{k=0..floor(n/2)} binomial(n+4·k,n-2·k). A373904

Expansion of 1 / ((1-x)² - x⁶). A392541

Expansion of (1 + x - x³)/((1 + x - x³)² - 4·x). A376785

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 59 ones. A31827

Numbers having four 9's in base 10. A43528

Near-repdigit semiprimes with 9 as repeated digit. A105990