Properties of the Number -98209

Ninety-Eight Thousand Two Hundred Nine

Basics

Value: -98210 → -98209 → -98208

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 17 × 53 × 109

Divisors: 1, 17, 53, 109, 901, 1853, 5777, 98209

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10111111110100001

Octal: -277641

Duodecimal: -48A01

Hexadecimal: -17fa1

Square: 9645007681

Square Root: 313.38315206788

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) = floor(c·r*a(n-1)) - floor(d·s*a(n-2)), where r = (1+sqrt(5))/2, s = r/(r-1), c = 1, d = 1, a(0) = 1, a(1) = 1. A275858

Negative of the Hankel transform of C(n) - C(n+2), where C = A000108. A138268

Denominators of continued fraction convergents to sqrt(5). A1076

Array A(n,k) = n·A(n,k-1) + A(n,k-2) read by upward antidiagonals, starting A(n,0) = 0, A(n,1) = 1. A172236

a(n) = Fibonacci(6·n + 3)/2. A7805

Antidiagonal sums of number triangle A086645. A108479

a(n) = floor(Fibonacci(n)/2). A4695

a(n) = ∑_{k=0..floor(n/4)} binomial(n-2k,2k). A5252

a(n) = n*(5·n² - 3)/2. A63522

Array read by antidiagonals of a(n) = a(n-1)*k-((k-1)/(kⁿ)) where a(0)=1 and k=(sqrt(x²+1)+x)² for integers x>=1. A188647