Properties of the Number 99909

Ninety-Nine Thousand Nine Hundred Nine

Basics

Value: 99908 → 99909 → 99910

Parity: odd

Prime: No

Previous Prime: 99907

Next Prime: 99923

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 × 653

Divisors: 1, 3, 9, 17, 51, 153, 653, 1959, 5877, 11101

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011001000101

Octal: 303105

Duodecimal: 49999

Hexadecimal: 18645

Square: 9981808281

Square Root: 316.0838496348714

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

Smallest multiple of n using only digits 0 and 9. A78248

Numbers whose set of base 10 digits is {0,9}. A97256

a(n) = (-1)ⁿ * coefficient of xⁿ in ∑_k>=1 x^k-1/(1+10·x^k). A101563

Numbers having four 9's in base 10. A43528

Numbers n such that for every k = 1, 2, ..., A305706(n)-1, it is possible to insert plus signs into the decimal representation of n^k to make sum equal n. A305707

Binary representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 873", based on the 5-celled von Neumann neighborhood. A284347

(prime(n)*(prime(n+1)-1) + (prime(n)-1)*prime(n+1)) / 2. A99909