Properties of the Number 98821

Ninety-Eight Thousand Eight Hundred Twenty-One

Basics

Value: 98820 → 98821 → 98822

Parity: odd

Prime: No

Previous Prime: 98809

Next Prime: 98837

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 17 × 5813

Divisors: 1, 17, 5813, 98821

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000001000000101

Octal: 301005

Duodecimal: 49231

Hexadecimal: 18205

Square: 9765590041

Square Root: 314.35807608521844

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

T(n,k)=Number of nXk binary arrays indicating whether each 2X2 subblock of a larger binary array has lexicographically nondecreasing rows and columns, for some larger (n+1)X(k+1) binary array with rows and columns of the latter in lexicographically nondecreasing order. A227256

Number of nX4 binary arrays indicating whether each 2X2 subblock of a larger binary array has lexicographically nondecreasing rows and columns, for some larger (n+1)X5 binary array with rows and columns of the latter in lexicographically nondecreasing order. A227254

a(n) = (n-2) * 2^n-1 + 5. A98821