Properties of the Number 98209

Ninety-Eight Thousand Two Hundred Nine

Basics

Value: 98208 → 98209 → 98210

Parity: odd

Prime: No

Previous Prime: 98207

Next Prime: 98213

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

Today's Target

7925 Try Today's Challenge

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

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

A Fibonacci convolution. A94686

a(n) = C(n-1,1) + C(n-3,3) + ... + C(n-2·m-1,2·m+1), where m = floor((n-2)/4). A24490