Properties of the Number 99405

Ninety-Nine Thousand Four Hundred Five

Basics

Value: 99404 → 99405 → 99406

Parity: odd

Prime: No

Previous Prime: 99401

Next Prime: 99409

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 47 ²

Divisors: 1, 3, 5, 9, 15, 45, 47, 141, 235, 423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010001001101

Octal: 302115

Duodecimal: 49639

Hexadecimal: 1844d

Square: 9881354025

Square Root: 315.28558482747036

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

The greedy sequence of real numbers at least 1 that do not contain any 3-term geometric progressions with integer ratio. A235054

a(n) = (2·n-1)*(2·n+1)². A102094

a(n) = smallest number k with property that if the base-n expansion of k is reversed, the result is a nontrivial multiple of k. A224220

Decimal part of 1/a(n) starts with Fibonacci(n) (leading zeros excluded). A99405