Properties of the Number 91409

Ninety-One Thousand Four Hundred Nine

Basics

Value: 91408 → 91409 → 91410

Parity: odd

Prime: No

Previous Prime: 91397

Next Prime: 91411

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 17 × 19 × 283

Divisors: 1, 17, 19, 283, 323, 4811, 5377, 91409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010100010001

Octal: 262421

Duodecimal: 44A95

Hexadecimal: 16511

Square: 8355605281

Square Root: 302.33921346725765

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

Number of length n+3 0..5 arrays with no four elements in a row with pattern abab (with a≠b) and new values 0..5 introduced in 0..5 order. A243041

a(n) = a(n-1) + 3·a(n-2) -2·a(n-3) - 2·a(n-4), where a(0) = 1, a(1) = 3, a(2) = 4, a(3) = 5. A295718

T(n,k)=Number of length n+3 0..k arrays with no four elements in a row with pattern abab (with a≠b) and new values 0..k introduced in 0..k order. A243044

a(n) is the smallest m such that A090822(m) = n. A91409