Properties of the Number 98221

Ninety-Eight Thousand Two Hundred Twenty-One

Basics

Value: 98220 → 98221 → 98222

Parity: odd

Prime: Yes

Previous Prime: 98213

Next Prime: 98227

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 98221

Divisors: 1, 98221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111111110101101

Octal: 277655

Duodecimal: 48A11

Hexadecimal: 17fad

Square: 9647364841

Square Root: 313.402297375115

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

Numbers k such that (11^k - 5^k)/6 is prime. A128347

Numerators of coefficients in expansion of exp(x)/(1 - x - x²). A279334

Number of n X 4 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224129

T(n,k)=Number of nXk 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224133

a(n) is the smallest number·such that floor(σ(σ(x))/x) = n or the A098219(x) quotient equals n. A98221