Properties of the Number 91405

Ninety-One Thousand Four Hundred Five

Basics

Value: 91404 → 91405 → 91406

Parity: odd

Prime: No

Previous Prime: 91397

Next Prime: 91411

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 101 × 181

Divisors: 1, 5, 101, 181, 505, 905, 18281, 91405

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010100001101

Octal: 262415

Duodecimal: 44A91

Hexadecimal: 1650d

Square: 8354874025

Square Root: 302.33259830855155

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

Indices of prime Perrin numbers; values of n such that A001608(n) is prime. A112881

Smaller of two consecutive numbers with the same prime signature not occurring earlier. A91405

Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically. A207722