Properties of the Number 99911

Ninety-Nine Thousand Nine Hundred Eleven

Basics

Value: 99910 → 99911 → 99912

Parity: odd

Prime: No

Previous Prime: 99907

Next Prime: 99923

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 ² × 2039

Divisors: 1, 7, 49, 2039, 14273, 99911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011001000111

Octal: 303107

Duodecimal: 4999B

Hexadecimal: 18647

Square: 9982207921

Square Root: 316.0870133365178

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) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = (composite numbers). A24471

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Lucas numbers), t = (composite numbers). A25091

Binary representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 446", based on the 5-celled von Neumann neighborhood. A282262

Primes of the form (p*(q-1) + (p-1)*q)/2, where p and q are consecutive odd primes. A99911

Concatenation of their first digits yields the difference of two subsequent terms, a(1)=1. This is the lexicographically first infinite sequence with this property. A260261