Properties of the Number 90815

Ninety Thousand Eight Hundred Fifteen

Basics

Value: 90814 → 90815 → 90816

Parity: odd

Prime: No

Previous Prime: 90803

Next Prime: 90821

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 41 × 443

Divisors: 1, 5, 41, 205, 443, 2215, 18163, 90815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001010111111

Octal: 261277

Duodecimal: 4467B

Hexadecimal: 162bf

Square: 8247364225

Square Root: 301.35527206272667

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 n X 2 0..2 arrays with every row and column running average nondecreasing rightwards and downwards. A200528

a(n)=denominator(B(2·prime(n))) where prime(n)=n-th prime and B(k) denotes the k-th Bernoulli number. A90815