Properties of the Number 90297

Ninety Thousand Two Hundred Ninety-Seven

Basics

Value: 90296 → 90297 → 90298

Parity: odd

Prime: No

Previous Prime: 90289

Next Prime: 90313

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 79 × 127

Divisors: 1, 3, 9, 79, 127, 237, 381, 711, 1143, 10033

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10110000010111001

Octal: 260271

Duodecimal: 44309

Hexadecimal: 160b9

Square: 8153548209

Square Root: 300.4945922974322

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

a(n) = floor(sqrt(a(n-1)² + a(n-2)²)), a(1)=10, a(2)=30. A104863

Numbers k such that the k-th triangular number contains each of the 10 decimal digits exactly once. A115939

a(n) = K₅(n) = ∑_k>=0 A090285(5,k)*2^k*binomial(n,k). a(n) = 2*(2·n⁵+45·n⁴+360·n³+1215·n²+1528·n+315)/15. A90297

O.g.f. A(x) satisfies: [xⁿ] exp( x·A(x) ) * ((n+1)² - A(x)) = 0 for n >= 0. A304858