Properties of the Number 90131

Ninety Thousand One Hundred Thirty-One

Basics

Value: 90130 → 90131 → 90132

Parity: odd

Prime: No

Previous Prime: 90127

Next Prime: 90149

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 193 × 467

Divisors: 1, 193, 467, 90131

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000000010011

Octal: 260023

Duodecimal: 441AB

Hexadecimal: 16013

Square: 8123597161

Square Root: 300.21825394202796

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

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x+289)² = y². A207059

Row 3 of A328464: a(n) = A276156(8n - 4) / 6. A328466

Semiprimes that are (perimeter² - hypotenuse²) of a Pythagorean triple. A389589

2·a(n) is the least number where k sets a new record such that 2·a(n)-k and 2·a(n)+k are prime and at least one of 2·a(n)-j and 2·a(n)+j is composite for all 0<j<k. A307881

Genocchi numbers (of first kind); unsigned coefficients give expansion of x·tan(x/2). A1469

Unsigned Genocchi numbers (of first kind) of even index. A110501

Expansion of ∏_k>=1 (1 - x^k)². A2107

Expansion of (1+x)/(1 - 2·x + 2·x²). A90131

Number of length 7+6 0..n arrays with no seven consecutive terms having the maximum of any three terms equal to the minimum of the remaining four terms. A249890