Properties of the Number 99688

Ninety-Nine Thousand Six Hundred Eighty-Eight

Basics

Value: 99687 → 99688 → 99689

Parity: even

Prime: No

Previous Prime: 99679

Next Prime: 99689

Digit Sum: 40

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 17 × 733

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 733, 1466

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000010101101000

Octal: 302550

Duodecimal: 49834

Hexadecimal: 18568

Square: 9937697344

Square Root: 315.7340653144668

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

Square table, read by antidiagonals, where the g.f. for row n+1 is generated by: x·R_n+1(x) = (1+n·x - 1/R_n(x))/(n+1) with R₀(x) = ∑_n>=0 n!*xⁿ. A111528

Row 2 of table A111528. A111529

Triangular matrix T, read by rows, that satisfies: SHIFT_LEFT(column 0 of T^p) = p*(column p+2 of T), or [T^p](m,0) = p·T(p+m,p+2) for all m>=1 and p>=-2. A111536

Consider the family of multigraphs enriched by the species of mod-6 sets. Sequence gives number of those multigraphs with 6n edges. A99688