Properties of the Number 99409

Ninety-Nine Thousand Four Hundred Nine

Basics

Value: 99408 → 99409 → 99410

Parity: odd

Prime: Yes

Previous Prime: 99401

Next Prime: 99431

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 99409

Divisors: 1, 99409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010001010001

Octal: 302121

Duodecimal: 49641

Hexadecimal: 18451

Square: 9882149281

Square Root: 315.2919282189127

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

Primes having only {0, 4, 9} as digits. A385768

Primes p that can be written as φ(k) + d(k) for some k, where φ(k) = A000010(k) is Euler's totient function and d(k) = A000005(k) is the number of divisors of k. A357916

Primes p such that the largest prime factor of p⁵ + 1 is less than p. A102327

primes of the form 5n² + 4. A201483

Numbers k such that 2·R_k + 5 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A99409