Properties of the Number 90585

Ninety Thousand Five Hundred Eighty-Five

Basics

Value: 90584 → 90585 → 90586

Parity: odd

Prime: No

Previous Prime: 90583

Next Prime: 90599

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 11 × 61

Divisors: 1, 3, 5, 9, 11, 15, 27, 33, 45, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000111011001

Octal: 260731

Duodecimal: 44509

Hexadecimal: 161d9

Square: 8205642225

Square Root: 300.97342075339475

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 number of distinct straightedge-and-compass constructions that can be made with a total of n lines and circles up to rigid motion. A383744

Numerator of (∑_k=1..n k) / (∏_k=1..n k). A90585

Number of nX5 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A280066

Array read by antidiagonals: ((z+sqrt(x))/2)^k + ((z-sqrt(x))/2)^k for columns k >= 0 and rows n >= 0, where x = 4·n+1 and y = ceiling(sqrt(x)) and z = y+1-(y mod 2). A309853